--- product_id: 32199349 title: "PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers" brand: "ronyes lifescience" price: "¥3614" currency: JPY in_stock: true category: "Ronyes Lifescience" url: https://www.desertcart.jp/products/32199349-ptfe-magnetic-stir-bar-set-7pcs-spinbar-stirring-10-35 store_origin: JP region: Japan --- # Multiple sizes available Magnetic stirring action Durable PTFE material PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers **Brand:** ronyes lifescience **Price:** ¥3614 **Availability:** ✅ In Stock ## Summary > 🔬 Stir Up Success with Every Spin! ## Quick Answers - **What is this?** PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers by ronyes lifescience - **How much does it cost?** ¥3614 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/32199349-ptfe-magnetic-stir-bar-set-7pcs-spinbar-stirring-10-35) ## 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 - • **Effortless Mixing:** Achieve consistent results with our powerful magnetic stirrer. - • **Chemical Resistant:** PTFE construction ensures longevity and reliability in any environment. - • **Versatile Sizing Options:** Choose from 10mm to 35mm for all your stirring needs. - • **Perfect for Professionals:** Elevate your experiments with a tool designed for the modern lab. - • **Unleash Your Lab's Potential:** Transform your mixing experience with precision and ease. ## Overview The PTFE Magnetic Stirrer Mixer Stir Bar Spinbar is designed for efficient and reliable mixing in laboratory settings. Available in various sizes (10mm to 35mm), these stir bars are made from durable PTFE material, ensuring resistance to chemicals and longevity. Perfect for professionals seeking precision in their experiments. ## 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") ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01ISMV5G4 | | Best Sellers Rank | #184,286 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #119 in Lab Stirrers | | Brand Name | Ronyes Lifescience | | Color | Beige | | Customer Reviews | 4.6 4.6 out of 5 stars (1,224) | | Item Thickness | 5 millimeters | | Item Weight | 0.05 kg | | Manufacturer | Ronyes Lifescience | | Material Type | Polytetrafluoroethylene | | Model Number | 7MSB | | Number of Pieces | 1 | | Part Number | 7MSB | | Shape | Cylindrical | | UPC | 606462652407 | | Unit Count | 1 Count | ## Product Details - **Brand:** Ronyes Lifescience - **Color:** Beige - **Item Thickness:** 5 millimeters - **Material:** Polytetrafluoroethylene - **Shape:** Cylindrical ## Images ![PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers - Image 1](https://m.media-amazon.com/images/I/61aPielrfsL.jpg) ![PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers - Image 2](https://m.media-amazon.com/images/I/517jbGYiUGL.jpg) ![PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers - Image 3](https://m.media-amazon.com/images/I/51TVlehG0BL.jpg) ![PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers - Image 4](https://m.media-amazon.com/images/I/71m0RPgViWL.jpg) ![PTFE Magnetic Stir Bar Set, 7Pcs Spinbar Stirring 10-35 mm | 10, 12, 20, 25, 28, 30 and 35 mm Lengths, 5-9 mm Diameters, PTFE Construction, for Laboratory Mixers - Image 5](https://m.media-amazon.com/images/I/51MZUQrCqgL.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. ## 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.jp/products/32199349-ptfe-magnetic-stir-bar-set-7pcs-spinbar-stirring-10-35](https://www.desertcart.jp/products/32199349-ptfe-magnetic-stir-bar-set-7pcs-spinbar-stirring-10-35) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-03*