--- product_id: 369212249 title: "7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring" brand: "ronyes lifescience" price: "153.45 DT" currency: TND in_stock: true reviews_count: 5 category: "Ronyes Lifescience" url: https://www.desertcart.tn/products/369212249-7-pcs-ptfe-magnetic-stirrer-mixer-stir-bar-spinbar-stirring store_origin: TN region: Tunisia --- # 7 versatile sizes for precise stirring PTFE casing ensures chemical inertness Recessed bezel minimizes vibration 7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring **Brand:** ronyes lifescience **Price:** 153.45 DT **Availability:** ✅ In Stock ## Summary > 🧪 Stir Smarter, Not Harder: Elevate Your Lab Game with Precision & Durability! ## Quick Answers - **What is this?** 7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring by ronyes lifescience - **How much does it cost?** 153.45 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - • **Optimized Turbulence:** Cylindrical rods provide a larger surface area, enhancing mixing efficiency and solution homogeneity. - • **Lab-Grade Versatility:** Ideal for biological, chemical, medical, and research applications—your go-to for professional sample prep. - • **Smooth & Stable Mixing:** Recessed bezel design reduces vibration, ensuring consistent and reliable stirring performance. - • **Precision in Every Spin:** 7 different sizes tailored for small to medium sample volumes, perfect for life science and environmental testing. - • **Chemical-Resistant Durability:** Crafted with PTFE casing to withstand harsh chemicals without degrading or contaminating samples. ## Overview The Ronyes Lifescience 7 Pcs PTFE Magnetic Stirrer Set features chemically inert polytetrafluoroethylene-coated stir bars in seven sizes, designed to minimize vibration and maximize mixing efficiency. Perfect for precise sample preparation in biological, chemical, and environmental labs, this set combines durability with professional-grade performance. ## 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: 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 | | Best Sellers Rank | #43,497 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Lab Stirrer Bars | | Brand | Ronyes Lifescience | | Brand Name | Ronyes Lifescience | | Colour | Beige | | Customer Reviews | 4.6 out of 5 stars 1,130 Reviews | | Item Thickness | 5 Millimetres | | Item Weight | 0.05 Kilograms | | Manufacturer | Ronyes Lifescience | | Manufacturer Part Number | 7MSB | | Material | Polytetrafluoroethylene | | Material Type | Polytetrafluoroethylene | | Model Number | 7MSB | | Number of Pieces | 1 | | Shape | Cylindrical | | UPC | 606462652407 | | Unit Count | 1.0 Count | ## 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) ![7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring - Image 2](https://m.media-amazon.com/images/I/517jbGYiUGL.jpg) ![7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring - Image 3](https://m.media-amazon.com/images/I/51TVlehG0BL.jpg) ![7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring - Image 4](https://m.media-amazon.com/images/I/71m0RPgViWL.jpg) ![7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring - Image 5](https://m.media-amazon.com/images/I/51MZUQrCqgL.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) - Slendor Magnetic Stirrer Hot Plate Mixer 1000ml Stirring Capacity 5 x 5 inch Max 520°F Hotplate and 100-2000 RPM Stirrer, Stirring Bar & Support Stand Included - Glass Measuring Low Form Beaker Set 50ml 100ml 250ml Borosilicate Lab Beaker Set … --- ## 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.tn/products/369212249-7-pcs-ptfe-magnetic-stirrer-mixer-stir-bar-spinbar-stirring](https://www.desertcart.tn/products/369212249-7-pcs-ptfe-magnetic-stirrer-mixer-stir-bar-spinbar-stirring) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-09*