--- product_id: 539557125 title: "Butterfly Knife - Balisong Trainer - Black Practice Butterfly Trainer with Sure Spring Latch - Balisong Knives NOT Real NOT Sharp Blade - Full Stainless Steel Fake Dull Trick CSGO Fidget Toy K19 B" brand: "good worker" price: "€ 31.19" currency: EUR in_stock: true reviews_count: 8 category: "Good Worker" url: https://www.desertcart.hr/products/539557125-butterfly-knife-balisong-trainer-black-practice-butterfly-trainer-with-sure store_origin: HR region: Croatia --- # Sure spring latch for secure locking Precision-tuned pivots for smooth flipping 420C stainless steel, 58 HRC durability Butterfly Knife - Balisong Trainer - Black Practice Butterfly Trainer with Sure Spring Latch - Balisong Knives NOT Real NOT Sharp Blade - Full Stainless Steel Fake Dull Trick CSGO Fidget Toy K19 B **Brand:** good worker **Price:** € 31.19 **Availability:** ✅ In Stock ## Summary > 🦋 Flip Fearlessly, Train Like a Pro! ## Quick Answers - **What is this?** Butterfly Knife - Balisong Trainer - Black Practice Butterfly Trainer with Sure Spring Latch - Balisong Knives NOT Real NOT Sharp Blade - Full Stainless Steel Fake Dull Trick CSGO Fidget Toy K19 B by good worker - **How much does it cost?** € 31.19 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/539557125-butterfly-knife-balisong-trainer-black-practice-butterfly-trainer-with-sure) ## Best For - good worker enthusiasts ## Why This Product - Trusted good worker brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lock & Load:** Spring latch secures handles closed, opens with a slick single thumb move - • **Effortless Control:** Ergonomic, non-slip handles designed for flawless flipping action - • **Cutting-Edge Safety:** Unsharpened blade ensures zero injuries while mastering tricks - • **Customizable Tension:** Adjust pivot screws easily to fine-tune your flipping experience - • **Pro-Grade Durability:** Reinforced screws and pins crafted from premium stainless steel ## Overview The GOOD WORKER K19B Butterfly Knife Trainer is a premium 420C stainless steel balisong designed for safe, injury-free practice. Featuring a 3.94-inch unsharpened blade, precision-tuned pivots, and a secure spring latch, it offers professional-grade durability and smooth flipping action. Lightweight and ambidextrous, this trainer is perfect for beginners and experts aiming to master butterfly knife tricks without risk. ## Description desertcart.com : Butterfly Knife - Balisong Trainer - Black Practice Butterfly Trainer with Sure Spring Latch - Balisong Knives NOT Real NOT Sharp Blade - Full Stainless Steel Fake Dull Trick CSGO Fidget Toy K19 B : Sports & Outdoors Review: Great for beginners and smooth to flip - I got this trainer butterfly knife to safely learn tricks without worrying about cuts, and I’m really happy with it. It’s well-balanced and has a solid feel—surprisingly sturdy for the price. The handles flip smoothly, and the weight makes it easy to practice without feeling too heavy or too light. The "blade" is blunt and safe, which is perfect for beginners (or parents of kids who are into this stuff). No sharp edges, but it still looks cool and gives a realistic feel. I’ve dropped it more times than I can count, and it’s holding up really well—no loose screws or major damage. The latch works fine, though it can get in the way during tricks sometimes (nothing a rubber band or quick mod can’t fix). Great choice if you're just getting into flipping or want a safe way to practice without risking your fingers. Fun, durable, and definitely worth it. Great for kids too! Review: Knife - Good quality but I did know it was dull it wasn't a knife gave it to her anyway she still liked it ## Features - Black butterfly knife is made of 420C stainless steel (58 HRC) with reinforced screws & pins, providing a reliable training experience. Lock type - spring latch; Blade length - 3.94"; Handle length - 5.12"; Overall length - 9.06"; Weight - 4.69 oz. - Safe blade. The balisong has an unsharpened blade, ensuring practice without any cuts, injuries or bruising to the hands. Our butterfly knife can't be sharpened due to its design - Durable build. We use high-quality stainless steel with reinforced screws, pins. Our training butterfly knife is designed for optimal balance, durability, handling and reliable use through practice sessions - Latch lock. Butterfly knife has the latch lock, which secures the balisong handles in the closed position. To open, it is pushed back with a thumb after which the handles rotate freely around their axes. Our butterfly knife can be opened with a single movement. - Perfect flipping action. Precision-tuned pivots and a non-slip ergonomic handle deliver the perfect experience for beginners, teens, adults and experts - Instruction to loose / tighten your balisong. Open the latch located on the bottom of the butterfly, hold the handle and tighten the pivot screw using a suitable screwdriver (located where the handle meets the blade base). Repeat the process for the other handle. Ensure that the handles aren't overtightened ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BYP86GXG | | Age Range (Description) | Adult | | Age Range Description | Adult | | Best Sellers Rank | #6,683 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Martial Arts Ninja Weapons | | Blade Length | 3.94 Inches | | Blade Material | Stainless Steel | | Blade Shape | Straight Back | | Blade Type | Butterfly | | Brand | GOOD WORKER | | Brand Name | GOOD WORKER | | Color | 1. Black | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.3 out of 5 stars 611 Reviews | | Hand Orientation | Ambidextrous | | Handle Material | Stainless Steel | | Included Components | No | | Is Product Cordless | Yes | | Item Length | 9.06 Inches | | Item Shape | Butterfly | | Item Weight | 133 Grams | | Manufacturer | GOOD WORKER | | Model Name | K19B | | Model Number | K19B | | Orientation | Adjustable | | Part Number | K19B | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Training | | Reusability | Reusable | | Set Name | Black | | Size | 3.9" | | Special Feature | Lightweight | | Special Features | Lightweight | | Style | Modern | | Theme | Sport | | Unit Count | 1.0 Count | | Warranty Description | no | ## Product Details - **Age Range (Description):** Adult - **Blade Material:** Stainless Steel - **Brand:** GOOD WORKER - **Color:** 1. Black - **Handle Material:** Stainless Steel - **Included Components:** No - **Model Name:** K19B - **Recommended Uses For Product:** Training - **Special Feature:** Lightweight - **Style:** Modern ## Images ![Butterfly Knife - Balisong Trainer - Black Practice Butterfly Trainer with Sure Spring Latch - Balisong Knives NOT Real NOT Sharp Blade - Full Stainless Steel Fake Dull Trick CSGO Fidget Toy K19 B - Image 1](https://m.media-amazon.com/images/I/71f+-s-1dLL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for beginners and smooth to flip *by A***A on July 7, 2025* I got this trainer butterfly knife to safely learn tricks without worrying about cuts, and I’m really happy with it. It’s well-balanced and has a solid feel—surprisingly sturdy for the price. The handles flip smoothly, and the weight makes it easy to practice without feeling too heavy or too light. The "blade" is blunt and safe, which is perfect for beginners (or parents of kids who are into this stuff). No sharp edges, but it still looks cool and gives a realistic feel. I’ve dropped it more times than I can count, and it’s holding up really well—no loose screws or major damage. The latch works fine, though it can get in the way during tricks sometimes (nothing a rubber band or quick mod can’t fix). Great choice if you're just getting into flipping or want a safe way to practice without risking your fingers. Fun, durable, and definitely worth it. Great for kids too! ### ⭐⭐⭐⭐⭐ Knife *by M***O on June 8, 2026* Good quality but I did know it was dull it wasn't a knife gave it to her anyway she still liked it ### ⭐⭐⭐⭐⭐ Good starter. *by W***. on June 20, 2026* Im new to flipping so I dont know the difference. But as for what it feels like to me, it feels like a real balisong. I like it and already learned 2 different flips with it. I got the fever now and actually woke up this morning and the first thing I did was pick it up and started flipping. Great for people who have anxiety. I recommend it for any beginners. Its a bit wobbly not sure how much is too much but wtvr. ## Frequently Bought Together - Butterfly Knife - Balisong Trainer - Black Practice Butterfly Trainer with Sure Spring Latch - Balisong Knives NOT Real NOT Sharp Blade - Full Stainless Steel Fake Dull Trick CSGO Fidget Toy K19 B - Butterfly Knife - Balisong Trainer - Black Practice Butterfly Trainer with Sure Spring Latch - Balisong Knives NOT Real NOT Sharp Blade - Full Stainless Steel Fake Dull Trick CSGO Fidget Toy K10B - GOOD WORKER Butterfly Trainer - Practice Sword NOT Real - Balisong NOT Sharp Blade - Cool Design - Black Dull Trick Butterfly - Butter Fly Training - Gifts for Men Boys Girls K14B --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/539557125-butterfly-knife-balisong-trainer-black-practice-butterfly-trainer-with-sure](https://www.desertcart.hr/products/539557125-butterfly-knife-balisong-trainer-black-practice-butterfly-trainer-with-sure) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-22*