---
product_id: 539418027
title: "7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring"
brand: "ronyes lifescience"
price: "5180 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Ronyes Lifescience"
url: https://www.desertcart.is/products/539418027-7-pcs-ptfe-magnetic-stirrer-mixer-stir-bar-spinbar-stirring
store_origin: IS
region: Iceland
---

# Recessed bezel for vibration-free stirring 7 versatile PTFE stir bars Chemically inert & friction-reducing casing 7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring

**Brand:** ronyes lifescience
**Price:** 5180 kr
**Availability:** ✅ In Stock

## Summary

> 🔬 Stir Smarter, Not Harder: Elevate Your Lab Game with Ronyes Lifescience!

## Quick Answers

- **What is this?** 7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring by ronyes lifescience
- **How much does it cost?** 5180 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/539418027-7-pcs-ptfe-magnetic-stirrer-mixer-stir-bar-spinbar-stirring)

## Best For

- ronyes lifescience enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Size Range:** Includes 7 stir bars from 10mm to 35mm, perfect for handling everything from micro samples to larger volumes in your lab.
- • **Precision Stirring Mastery:** Engineered with PTFE casing to resist harsh chemicals and minimize friction, ensuring smooth, reliable mixing every time.
- • **Vibration-Free Performance:** Recessed bezel design reduces vibration, delivering stable and consistent stirring for sensitive experiments.
- • **Optimized for Life Sciences:** Ideal for environmental testing and biological research where small sample volumes demand precision and care.
- • **Durable & Convenient Storage:** Comes in a sleek foam-cutout box, keeping your stir bars organized and ready for action—because your lab deserves the best.

## Overview

The Ronyes Lifescience 7 Pcs PTFE Magnetic Stirrer Set features chemically inert, friction-reducing polytetrafluoroethylene-coated stir bars in seven sizes (10mm to 35mm). Designed for precise, vibration-free stirring in biological, chemical, and environmental labs, this set is perfect for small sample volumes and harsh chemical environments. Packaged in a foam-cutout box for organized storage, it’s a reliable, cost-effective solution trusted by over 1,100 users with a 4.6-star rating.

## Description

Length Diameter 10 mm (3/8") 5mm(1/5") 12 mm (1/2") 7mm(1/3") 20mm(3/4") 8mm(1/3") 25mm(1") 7mm(1/3") 28mm(1-1/8 ") 8mm(1/3 ") 30mm(1-1/5")8mm(1/3") 35mm(1-2/5") 9mm(2/5") Your satisfaction is always our top priority. Anything we can help, please contact us freely.

Review: decent cheap stirrer set. - these work just fine, haven't had an issue yet using them with my magnetic stirrer/hot plate. didn't realize how small the smallest ones were and don't know if I'll ever find a use for them to be honest as the smallest one is about the size of a Rice Crispy.. but they come in a nice cardboard box with foam cutouts for each for storage. they also double as boiling beads, lol. cannot complain for $10 as they do what they say and I've had no issues.
Review: Buenos - Le sirvieron bien a mi hijo

## Features

- It is used to stir a liquid or solution in biological, chemical, medical and research laboratory applications
- Teflon (PTFE) casing is chemically inert, be used with harsh chemicals and reduces friction while in spinning
- Recessed bezel helps to reduce vibration while stirring.Particularly Useful for Environmental Testing and Life Science Applications in Which Small Sample Volumes Need to be Prepared and Evaluated
- The stir bar is placed in a container of liquid or solution, which is seated on a magnetic stirrer, which is a laboratory device which generates a rotating magnetic field using a rotating magnet or a plurality of stationary electromagnets
- Provides a larger surface area and added turbulence when the smooth surface of the cylindrical rods compared

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01ISMV5G4 |
| Brand | Ronyes Lifescience |
| Brand Name | Ronyes Lifescience |
| Customer Reviews | 4.6 out of 5 stars 1,127 Reviews |
| Item Weight | 0.05 Kilograms |
| Manufacturer | Ronyes Lifescience |
| Material | Polytetrafluoroethylene |
| Material Type | Polytetrafluoroethylene |
| Number of Pieces | 1 |
| Number of pieces | 1 |
| Shape | Cylindrical |
| UPC | 606462652407 |
| Unit Count | 1 Count |

## Product Details

- **Material:** Polytetrafluoroethylene
- **Brand:** Ronyes Lifescience
- **Shape:** Cylindrical
- **Number of pieces:** 1
- **Manufacturer:** Ronyes Lifescience

## Images

![7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring - Image 1](https://m.media-amazon.com/images/I/61aPielrfsL.jpg)

## Questions & Answers

**Q: Which country is this made in?**
A: Um, the big one with lots and lots of people, starts with 'C'...

**Q: Is the item well-packaged?**
A: Yes the item was well-packaged.  Came in nice small white box that contains the 7 different size magnetic stir bars.

**Q: Does it come with an instruction sheet to suggest which size for which volume of liquid? I need for a 4 liter container, 3000 ml of liquid?**
A: There are no instructions. I tried a couple different ones until I found the one that worked best for my needs

**Q: Can we use this to replace a stirrer that comes with self stirrer coffee mugs?**
A: Yes, it's a magnet which has been coated with PTFE.

## Customer Reviews

### ⭐⭐⭐⭐⭐ decent cheap stirrer set.
*by B***R on 10 May 2020*

these work just fine, haven't had an issue yet using them with my magnetic stirrer/hot plate. didn't realize how small the smallest ones were and don't know if I'll ever find a use for them to be honest as the smallest one is about the size of a Rice Crispy.. but they come in a nice cardboard box with foam cutouts for each for storage. they also double as boiling beads, lol. cannot complain for $10 as they do what they say and I've had no issues.

### ⭐⭐⭐⭐⭐ Buenos
*by Z***O on 3 November 2025*

Le sirvieron bien a mi hijo

### ⭐⭐⭐⭐⭐ Good set!
*by J***S on 7 June 2020*

Good set, I mainly use the larger ones but I ran the small ones as a test and they’re pretty good too, except for the smallest one which probably has to do with the size of the magnet in my stirrer but it’s okay anyways

## Frequently Bought Together

- Ronyes Lifescience PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring (35mm, 30mm, 28mm, 25mm, 20mm, 12mm, 10mm)
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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-12*