---
product_id: 54183864
title: "Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS)"
brand: "bbtcty"
price: "₨9137"
currency: LKR
in_stock: true
reviews_count: 8
category: "Bbtcty"
url: https://www.desertcart.lk/products/54183864-magnetic-stirrer-stir-bar-ptfe-magnetic-mixer-stir-bars-3x5mm
store_origin: LK
region: Sri Lanka
---

# Corrosion & chemical resistant Strong magnetic force Temp resistant -196°C to 250°C Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS)

**Brand:** bbtcty
**Price:** ₨9137
**Availability:** ✅ In Stock

## Summary

> 🧲 Stir up brilliance with magnetic precision!

## Quick Answers

- **What is this?** Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS) by bbtcty
- **How much does it cost?** ₨9137 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/54183864-magnetic-stirrer-stir-bar-ptfe-magnetic-mixer-stir-bars-3x5mm)

## Best For

- bbtcty enthusiasts

## Why This Product

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

## Key Features

- • **Precision Perfect Size:** 3x5mm cylinders engineered for flawless stirring in various beakers and stirrers.
- • **Chemical & Weather Warrior:** PTFE material resists acids, alkalis, solvents, and long-term atmospheric exposure—built to last.
- • **Unmatched Magnetic Strength:** New & powerful magnets ensure consistent, efficient mixing every time.
- • **Extreme Temperature Resilience:** Operates seamlessly from cryogenic lows (-196°C) to high heat (250°C) without losing integrity.
- • **Non-Toxic & No-Stick Innovation:** Physiologically inert with ultra-low surface tension, preventing adhesion and ensuring safe lab use.

## Overview

This set of 20 PTFE cylindrical magnetic stir bars (3x5mm) offers high-strength magnets with exceptional chemical, temperature (-196°C to 250°C), and weather resistance. Designed for professional lab and liquid culture use, they deliver reliable, non-toxic, and adhesion-free stirring performance, making them a must-have for precise mixing in demanding environments.

## Description

1.Size:3 mm x 5 mm (Diameter x length)2.Shape:Cylinder shape ; Quantity: 20pcs 3.High-quality, Strong Magnetic, New & Clean & Cute 4.High temperature: the use of operating temperature up to 250 ℃ 5.Corrosion resistance: for most chemicals and solvents, showing inert, strong acid and alkali resistance, water and a variety of organic solvents6.High lubrication: the lowest coefficient of friction in solid materials 7. Low temperature resistance: good mechanical toughness, even if the temperature dropped to -196 ℃, can also maintain a 5% elongation8.No adhesion: with the smallest surface tension in the solid material, no adhesion to any substance 9.Weather resistance: long-term exposure to the atmosphere, the surface and performance remain unchanged 10.Non-toxic: with physiological inertia, as artificial blood vessels and organs long-term implanted in vivo no adverse reactions

Review: Small but effective - They look small but do the job great for a 500ml liquid culture
Review: Work well - I love these little stirrer magnets. Even though they are not that big, they work well in my liquid culture jars.

## Features

- Size:3mmx5mm (Diameter * length) ; Quantity: 20pcs
- Material : PTFE (Polytetrafluoroethylene), Shape:Cylinder shape ;Suitable for various stirrers and beakers
- New & Strong Magnetic, High-quality & Precise sizes
- Good Plastic Bag Packing : Clean & Cute , you're worth it.
- Non-toxic,No adhesion,High /Low temperature resistance,Weather resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074FVWH1J |
| Best Sellers Rank | #53,181 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Lab Stirrer Bars |
| Brand | BBTCTY |
| Brand Name | BBTCTY |
| Color | 3X5mm,20pcs |
| Customer Reviews | 4.5 out of 5 stars 191 Reviews |
| Included Components | no |
| Item Dimensions L x W x Thickness | 0.2"L x 0.12"W x 0.12"Th |
| Item Thickness | 3 Millimeters |
| Manufacturer | BBTCTY |
| Material | Plastic |
| Material Type | Plastic |
| Number of Pieces | 20 |
| Product Dimensions | 0.2"L x 0.12"W x 0.12"Th |
| Shape | Cylindrical |
| UPC | 723740420043 |

## Product Details

- **Material:** Plastic
- **Brand:** BBTCTY
- **Product Dimensions:** 0.2"L x 0.12"W x 0.12"Th
- **Color:** 3X5mm,20pcs
- **Shape:** Cylindrical

## Images

![Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS) - Image 1](https://m.media-amazon.com/images/I/71DEhFV1vbL.jpg)
![Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS) - Image 2](https://m.media-amazon.com/images/I/813ZOvfOnLL.jpg)
![Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS) - Image 3](https://m.media-amazon.com/images/I/91GxOPVJDZL.jpg)
![Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS) - Image 4](https://m.media-amazon.com/images/I/81aj6WuwhIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Small but effective
*by E***9 on February 24, 2021*

They look small but do the job great for a 500ml liquid culture

### ⭐⭐⭐⭐⭐ Work well
*by B***. on July 23, 2020*

I love these little stirrer magnets. Even though they are not that big, they work well in my liquid culture jars.

### ⭐⭐⭐⭐ Smaller
*by T***S on September 11, 2020*

Smaller than expected

## Frequently Bought Together

- Magnetic Stirrer Stir Bar PTFE Magnetic Mixer Stir Bars (3X5mm, Cylinder Shape, 20PCS)
- LABALPHA 6Pcs PTFE Magnetic Stirrer Mixer Stir Bar, Magnetic Stir Bar 10mm/0.39 inch

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**Shop now:** [https://www.desertcart.lk/products/54183864-magnetic-stirrer-stir-bar-ptfe-magnetic-mixer-stir-bars-3x5mm](https://www.desertcart.lk/products/54183864-magnetic-stirrer-stir-bar-ptfe-magnetic-mixer-stir-bars-3x5mm)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-18*