--- product_id: 332437659 title: "Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch" brand: "weewooday" price: "€ 2.78" currency: EUR in_stock: false reviews_count: 13 url: https://www.desertcart.hr/products/332437659-weewooday-36-pieces-ptfe-magnetic-stir-bar-lab-stirrer-35 store_origin: HR region: Croatia --- # High temperature & corrosion resistant PTFE coating Strong magnetic force for stable stirring Smooth cylindrical design reduces friction Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch **Brand:** weewooday **Price:** € 2.78 **Availability:** ❌ Out of Stock ## Summary > 🧪 Stir Smarter, Not Harder — Elevate Your Lab Game with Weewooday! ## Quick Answers - **What is this?** Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch by weewooday - **How much does it cost?** € 2.78 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/332437659-weewooday-36-pieces-ptfe-magnetic-stir-bar-lab-stirrer-35) ## Best For - weewooday enthusiasts ## Why This Product - Trusted weewooday brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Compatibility:** Perfectly sized at 35mm to fit most beakers, jars, and stir plates for seamless integration. - • **Effortless Smooth Mixing:** Cylindrical shape and ultra-low friction surface guarantee stable speed with zero deviation. - • **Unmatched Magnetic Power:** Engineered with premium magnetic steel to ensure consistent, vortex-inducing rotation every time. - • **Durability Meets Precision:** PTFE coating resists abrasion, corrosion, and high heat—built to last through countless lab sessions. - • **Bulk Pack for Lab Efficiency:** 36 pieces in one set to keep your workflow uninterrupted and your experiments on point. ## Overview The Weewooday 36-piece PTFE magnetic stirrer bar set features 35mm cylindrical bars crafted from magnetic steel with a high-grade PTFE coating. Designed for high-temperature resistance, corrosion protection, and smooth, stable rotation, these bars are ideal for scientific research, industrial labs, and academic settings. Compatible with most magnetic stirrers and heating plates, this bulk pack ensures reliable, efficient mixing for a variety of applications. ## Description Place the magnetic stirrer bar in a beaker, graduated cylinder or other container. Place the container on the platform of the electromagnetic heating stirrer, and then turn on the switch of the electromagnetic heating stirrer. The magnetic stirrer will generate rotational force to drive the substance to rotate quickly. In this way, the substance is completely mixed, and the substance can be concentrated by heating. ## Features - Features: magnetic stir bar can resist , corrosion, abrasion and high rotational forces, and has the properties of fine workmanship, no impurities and burrs on the surface, stable speed and no deviation - Quality material: PTFE magnetic stirrer is made of PTFE and quality magnetic steel, and the cylindrical shape and smooth surface will reduce friction and improve smooth rotation - More other applications: laboratory bar is widely applied in scientific research, universities, laboratories in the industrial and agricultural sectors, and also can be applied to stir mixed substances - Widely applicable: stir plate magnet bar will work well with various types of magnetic stirrers or heating stirrers - Package includes: comes with PTFE magnetic stir bars in our package, all of them are 35 mm/ 1.38 inch ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B093T6STDD | | Best Sellers Rank | #43,637 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #61 in Lab Stirrers | | Brand Name | Weewooday | | Color | white | | Customer Reviews | 4.7 4.7 out of 5 stars (1,725) 4.7 out of 5 stars | | Item Dimensions L X W X Thickness | 6.5"L x 3.54"W x 0.79"Th | | Item Highlight | Stainless Steel Laboratory Ptfe Stirrer Plate Bar, Pill-shaped Mixing Plate Magnetic Stick, Laboratory Use, White Color | | Item Thickness | 0.31 inches | | Manufacturer | Weewooday | | Material Type | Magnetic Steel | | Model Number | Weewooday-PTFE Magnetic Stirrer-01 | | Number Of Items | 36 | | Number Of Pieces | 36 | | Part Number | Weewooday-PTFE Magnetic Stirrer-01 | | Shape | Cylindrical | | Unit Count | 36 Count | ## Product Details - **Brand:** Weewooday - **Color:** white - **Material:** Magnetic Steel - **Product Dimensions:** 6.5"L x 3.54"W x 0.79"Th - **Shape:** Cylindrical ## Images ![Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch - Image 1](https://m.media-amazon.com/images/I/619G75onKgS.jpg) ![Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch - Image 2](https://m.media-amazon.com/images/I/61ejEhj4GvS.jpg) ![Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch - Image 3](https://m.media-amazon.com/images/I/71h3yLTRHKL.jpg) ![Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch - Image 4](https://m.media-amazon.com/images/I/71J8U4ykWoL.jpg) ![Weewooday 36 Pieces PTFE Magnetic Stir Bar Lab Stirrer,35 Mm/ 1.38 Inch - Image 5](https://m.media-amazon.com/images/I/71Z8uYP3mRL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Questions & Answers **Q: Can these be autoclaved?** A: I would have to assume so. They’re scientific instruments. Generally, with a few exceptions, there designed to be regularly sterilized. I regularly send mine through a pressure cooker at 15 PSI in liquid cultures **Q: Could these be used with a sensor for an alarm system (Simplisafe)? I have double hung windows so need a slim magnet to put opposite the sensor. Thx** A: Probably, but I suspect it would be much easier to use one of these that's the size you want: https://www.amazon.com/s?k=neodymium+disc+magnets&crid=3RBE9SKKGYW9W&sprefix=Neodyn%2Caps%2C235&ref=nb_sb_ss_ts-doa-p_5_6 **Q: is there any possibilities that these could degrade and leak into the water? any easy way to see it? thanks** A: There is nothing to leak. Inside is a solid magnet. It's possible that after using them a long time, friction could wear out the plastic coating, but that will probably take years and you'll see it slowly degrading. Just take a quick glance before you use them and if they look like they are in good condition, they are. **Q: Is there a "flat" side of the magnet, or are both sides curved?** A: Both sides are curved. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect *by on Reviewed in the United States June 7, 2026* These little stir bars work perfectly, they spin quietly, stay centered, and the PTFE coating feels durable. The different sizes make it easy to match whatever beaker or container you’re using. Great value for a reliable set. ### ⭐⭐⭐⭐⭐ Stirs 32oz Liquid Culture easy peasy. *by on Reviewed in the United States May 13, 2026* They are large enough to stir 32oz LCs on low to medium. They also work with smaller jars (1pint). They are strongly magnetic and the coating holds up to daily stirring. I havent had any issues with Sterilizing them or the coating pitting. They work well with my basic small stir plate. ### ⭐⭐⭐⭐⭐ Have used for 5+ years been using for mycology Liquid Culture prop. in 1/2 gal ball jars. *by on Reviewed in the United States March 22, 2026* These work great, expensive, yet 'renewably reusable', and also just work. I use these in 1/2 gal ball liquid culture jars, and with simple 28 dollar stir plates. With the right setting, these kick up and make a vortex in 1-2 seconds, and don't get lost or tossed on my plates. 1" to 1.125" is the right for this application. These work fine and are reusable, or giftable, or tossable. ## Frequently Bought Together - Weewooday 36 Pieces PTFE Magnetic Mixer Stirrer Bar, White Color Stainless Steel Laboratory PTFE Stir Plate Bar, Mixing Plate Magnet Stick (35 mm/ 1.38 Inch) - INTLLAB Magnetic Stirrer Stainless Steel Magnetic Mixer with stir bar (No Heating) Max Stirring Capacity: 3000ml - 50ml Beaker, Low Form Griffin, Borosilicate 3.3 Glass, Double Scale, Graduated, Karter Scientific 213D31 (Single) --- ## 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/332437659-weewooday-36-pieces-ptfe-magnetic-stir-bar-lab-stirrer-35](https://www.desertcart.hr/products/332437659-weewooday-36-pieces-ptfe-magnetic-stir-bar-lab-stirrer-35) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-22*