---
product_id: 369212249
title: "7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring"
brand: "ronyes lifescience"
price: "23176 Ft"
currency: HUF
in_stock: true
reviews_count: 5
category: "Ronyes Lifescience"
url: https://www.desertcart.hu/products/369212249-7-pcs-ptfe-magnetic-stirrer-mixer-stir-bar-spinbar-stirring
store_origin: HU
region: Hungary
---

# PTFE casing ensures chemical inertness & low friction Recessed bezel minimizes vibration for stable mixing 7 versatile sizes for precise stirring 7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring

**Brand:** ronyes lifescience
**Price:** 23176 Ft
**Availability:** ✅ In Stock

## Summary

> 🧪 Stir Smarter, Not Harder – Elevate Your Lab Game!

## Quick Answers

- **What is this?** 7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring by ronyes lifescience
- **How much does it cost?** 23176 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/369212249-7-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

- • **Vibration-Free Mixing:** Recessed bezel design reduces vibration, delivering smooth, consistent stirring for sensitive experiments.
- • **Precision in Every Spin:** 7 magnetic stir bars ranging from 10mm to 35mm to perfectly match your sample volume and container size.
- • **Chemically Resistant PTFE:** Durable Teflon coating withstands harsh chemicals, ensuring longevity and contamination-free mixing.
- • **Compact & Organized Storage:** Comes in a sleek foam-cutout box, keeping your stir bars protected and ready for action.
- • **Optimized for Small Samples:** Ideal for environmental testing and life sciences where sample volumes are limited but accuracy is critical.

## Overview

This 7-piece PTFE magnetic stir bar set offers chemically inert, vibration-reducing cylindrical rods in multiple sizes (10mm to 35mm), perfect for precise stirring in biological, chemical, and medical labs. Designed for small sample volumes, these durable Teflon-coated bars ensure smooth mixing with minimal friction, packaged neatly for professional use.

## 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")

Review: 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: 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 |
| Are batteries included? | No |
| Best Sellers Rank | #131,286 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Lab Stirrer Bars |
| Brand | Ronyes Lifescience |
| Colour | Beige |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,128) |
| Date First Available | 9 September 2016 |
| Item Weight | 50 g |
| Item model number | 7MSB |
| Manufacturer | Ronyes Lifescience |
| Material | Polytetrafluoroethylene |
| Model number | 7MSB |
| Net Quantity | 1.0 Count |
| Number of Memory Sticks | 7 |
| Number of Pieces | 1 |
| Package Dimensions | 10.2 x 6 x 2.8 cm; 50 g |
| Shape | Cylindrical |
| UPC | 606462652407 |

## Product Details

- **Brand:** Ronyes Lifescience
- **Colour:** Beige
- **Material:** Polytetrafluoroethylene
- **Number of Pieces:** 1
- **Shape:** Cylindrical

## Images

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

## Available Options

This product comes in different **Size** options.

## 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

### ⭐⭐⭐⭐⭐ Review
*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.

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

Le sirvieron bien a mi hijo

### ⭐⭐⭐⭐⭐ Review
*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 Hungary*
*Store origin: HU*
*Last updated: 2026-03-02*