---
product_id: 70730806
title: "16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black)"
brand: "lifeswonderful"
price: "€ 17.09"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/70730806-16-pieces-variety-of-sizes-square-tube-ribbed-inserts-end
store_origin: HR
region: Croatia
---

# Precise 20mm fit Square ribbed design Fits 0.8-3.0mm wall thickness 16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black)

**Brand:** lifeswonderful
**Price:** € 17.09
**Availability:** ✅ In Stock

## Summary

> 🔲 Elevate your furniture’s finish with precision and style!

## Quick Answers

- **What is this?** 16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black) by lifeswonderful
- **How much does it cost?** € 17.09 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/70730806-16-pieces-variety-of-sizes-square-tube-ribbed-inserts-end)

## Best For

- lifeswonderful enthusiasts

## Why This Product

- Trusted lifeswonderful brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Perfect 20mm Fit:** Engineered for exact external tube dimensions to ensure a seamless, secure fit.
- • **Durable & Discreet:** High-quality plastic construction offers long-lasting protection while maintaining a minimalist aesthetic.
- • **Bulk Pack Convenience:** 16-piece set in sleek black, providing ample replacements or upgrades for your entire furniture collection.
- • **Ribbed Grip Technology:** Innovative ribbed inserts prevent slipping and enhance stability on furniture legs.
- • **Versatile Compatibility:** Designed for square metal tubes with wall thickness from 0.8 to 3.0mm, ideal for tables, chairs, and more.

## Overview

This 16-piece set of black square ribbed end caps by Lifeswonderful is designed to fit 20mm external square tubes with wall thickness between 0.8 and 3.0mm. Ideal for protecting and finishing table, chair, and furniture legs, these durable plastic inserts provide a secure, slip-resistant fit that enhances both function and appearance.

## Description

16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black)

## Features

- Plastic square press-in ribbed inserts available in various sizes - to avoid inconvenient and costly returns, please measure carefully before ordering
- Pack of 16 pieces - black - to fit a tube with 20mm EXTERNAL size
- Size refers to EXTERNAL dimensions of tube - please see pictures showing how to measure
- Suitable for square metal table, chair & furniture legs, and any other hollow square box section tubing
- Suitable for wall thickness of between 0.8 and 3.0mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Recommended uses for product | Table, Chair, Furniture |
| Number of pieces | 16 |
| Unit count | 16 count |
| Manufacturer | Lifeswonderful |
| Part Number | SQINS20-16 |
| Item model number | 20mm Black |
| Size | 20 mm Black |
| Style | 20 mm Black |
| Item Package Quantity | 16 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 30 g |

## Product Details

- **Brand:** Lifeswonderful
- **Material:** Plastic
- **Colour:** Black
- **Shape:** Square
- **Number of items:** 16

## Images

![16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black) - Image 1](https://m.media-amazon.com/images/I/61Zx9gvaNdL.jpg)
![16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black) - Image 2](https://m.media-amazon.com/images/I/61HpCGvhNqL.jpg)
![16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black) - Image 3](https://m.media-amazon.com/images/I/51sEGv7BKsL.jpg)
![16 Pieces - Variety of Sizes - Square Tube Ribbed Inserts End Caps Stoppers Plugs for Table Chair & Furniture Legs by Lifeswonderful (20mm, Black) - Image 4](https://m.media-amazon.com/images/I/61Vwlzl6aFL.jpg)

## Available Options

This product comes in different **Style Name** options.

## Questions & Answers

**Q: My chair legs are under one inch square what size will I need**
A: You will need to measure the inside of the square a bit more accurately. I'm afraid under one inch square is a bit vague sorry. One inch equals 25mm so if it is indeed one inch then a 25mm insert should fit.

**Q: Hi whats inside tube measurements for 25mm**
A: for a tube with an external diameter of 25mm, these inserts have a tolerance for a tube of metal thickness of 0.5 to 2.5mm  (therefore an internal hole of about 20mm to 24mm)

**Q: How far in mm do they stick out of the tube?**
A: when purchasing these items the outside diameter of the tube is required (not he hole) so that they do not stick out and sit flush with the tube. 
The flaps of he insert will fold into the hole to hold securely.

**Q: "Suitable for square tubular stock with 25mm external diameter" - do you sell a version that fits a 32cm external diameter?**
A: Dear Mr Bellchambers, we do sell 32mm x 32mm square inserts, same price, but these items are currently not listed on Amazon. Please place an order on this listing and I will ensure that you are sent the 32mm size instead - will keep a look out for your name on the order. Hope this helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by J***T on 5 February 2025*

Measure correctly and no problems

### ⭐⭐⭐⭐⭐ Very good!
*by L***  on 16 November 2024*

Nice quality material and excellent size/fitment for my application

### ⭐⭐⭐⭐ Useful to have in the cupboard.
*by N***E on 14 June 2024*

Pleased to get what I needed.Handy to keep spares in the cupboard.Surprised how many times they are needed.

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**Shop now:** [https://www.desertcart.hr/products/70730806-16-pieces-variety-of-sizes-square-tube-ribbed-inserts-end](https://www.desertcart.hr/products/70730806-16-pieces-variety-of-sizes-square-tube-ribbed-inserts-end)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-21*