--- product_id: 183118432 title: "Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece" brand: "bbtcty" price: "99.79 DT" currency: TND in_stock: true reviews_count: 8 category: "Bbtcty" url: https://www.desertcart.tn/products/183118432-magnetic-stirrer-stir-bar-big-2-8-inch-length-ptfe store_origin: TN region: Tunisia --- # PTFE chemical resistant Strong magnetic pull High RPM stability Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece **Brand:** bbtcty **Price:** 99.79 DT **Availability:** ✅ In Stock ## Summary > 🧪 Stir Smarter, Not Harder: The Ultimate Magnetic Mixer Bar for Pros ## Quick Answers - **What is this?** Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece by bbtcty - **How much does it cost?** 99.79 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/183118432-magnetic-stirrer-stir-bar-big-2-8-inch-length-ptfe) ## 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 - • **Olive Shape Precision:** Optimized shape ensures smooth, consistent stirring without adhesion - • **Premium PTFE Material:** Non-toxic, weather and chemical resistant for lab-grade durability - • **High-Speed Performance:** Operates flawlessly up to 400 RPM without spinning out - • **Powerful Magnetic Grip:** Heavier and larger for superior mixing efficiency - • **Whisper-Quiet Operation:** So silent you’ll forget it’s even stirring—perfect for focused work ## Overview This 2.8-inch olive-shaped magnetic stir bar, crafted from durable PTFE, delivers exceptional stirring power with a strong magnetic core and high RPM stability. Engineered for professional labs and research, it resists chemicals, temperature extremes, and adhesion, ensuring long-lasting, quiet, and efficient mixing for your critical solutions. ## Description 1.Name: Polytetrafluoroethylene Magnetic Stir Bars 2.Size:20mmx70mm ( Diameter 0.8 inch * length 2.8 inch ) ; 3.Shape: Olive shape ; Quantity: 1pcs 4.Material PTFE (Polytetrafluoroethylene); Color: pure white, Review: Better than a Similar, Much More $, Stirrer - I bought the Cole-Parmer 37130-9003 Egg-Shaped Stir Bar, 3" L x 3/4" Dia; 1/Pk in April for $43.83. And it has worked well. But when I couldn't find it last week (since found), I ordered this very similar stir bar. Hands down, this iitem performs better. It's heavier, bigger, and thus mixes more. This magnet is significantly stronger. It will move itself to the magnetic center above the magnetic stirrer if the I place it anywhere close to that location. Also, this stir bar can handle a significantly faster rate of rotation per minute without spinning out. I got it up to 400 RPM, mixing lye into 4L of water, and had no interest in going any faster. I am assuming this stir bar will last for a good while, given the material of its composition. I will report back if any problems arise in that regard. At the moment, I am tickled pink. Update: This stirrer is also significany quieter than other stir bars I have used. Once it gets up to speed, I have to look at the surface of the liquid being stirrer to verify that it is being stirred. I received no compensation or benefit for this review. Review: Vortex drinking water - These are extra "pills" for my magnetic stirrer, Perfect for my needs, I use them to vortex oxygen into my drinking water, also I use them for stirring my coffee, I use powdered milk and a tablespoon of honey, and these are the perfect size for a coffee cup, ads oxygen to my coffee also! Water Vortex machines can cost hundreds of dollars, but these magnetic stirrers are cheap and do exactly the Same thing!!! ## Features - Large Size: Diameter 23mm (0.9 inch) , Length 70mm (2.8 inch ) - Shape: Olive shape ; Quantity: 1pcs - Material PTFE (Polytetrafluoroethylene); Color: pure white, - It is used to stir a liquid or solution in biological, chemical, medical and research laboratory applications - Non-toxic,No adhesion,High /Low temperature resistance,Weather resistance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07VSMKNBF | | Best Sellers Rank | #33,429 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Lab Stirrer Bars | | Brand Name | BBTCTY | | Color | 23X70mm,1pcs | | Customer Reviews | 4.2 4.2 out of 5 stars (30) | | Manufacturer | BBTC | | Material Type | Polytetrafluoroethylene | | Model Number | Stir-A23*70mm | | Number of Pieces | 1 | | Part Number | Stir-A23*70mm | | Shape | Olive Shape | | Unit Count | 1.0 Count | ## Product Details - **Brand:** BBTCTY - **Color:** 23X70mm,1pcs - **Material:** Polytetrafluoroethylene - **Number of Pieces:** 1 - **Shape:** Olive Shape ## Images ![Magnetic Stirrer Stir Bar Big 2.8 inch Length PTFE Magnetic Mixer Stir Bars,1 Piece - Image 1](https://m.media-amazon.com/images/I/61ofEqpJo9L.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Better than a Similar, Much More $, Stirrer *by D***R on May 30, 2024* I bought the Cole-Parmer 37130-9003 Egg-Shaped Stir Bar, 3" L x 3/4" Dia; 1/Pk in April for $43.83. And it has worked well. But when I couldn't find it last week (since found), I ordered this very similar stir bar. Hands down, this iitem performs better. It's heavier, bigger, and thus mixes more. This magnet is significantly stronger. It will move itself to the magnetic center above the magnetic stirrer if the I place it anywhere close to that location. Also, this stir bar can handle a significantly faster rate of rotation per minute without spinning out. I got it up to 400 RPM, mixing lye into 4L of water, and had no interest in going any faster. I am assuming this stir bar will last for a good while, given the material of its composition. I will report back if any problems arise in that regard. At the moment, I am tickled pink. Update: This stirrer is also significany quieter than other stir bars I have used. Once it gets up to speed, I have to look at the surface of the liquid being stirrer to verify that it is being stirred. I received no compensation or benefit for this review. ### ⭐⭐⭐⭐⭐ Vortex drinking water *by W***E on September 3, 2025* These are extra "pills" for my magnetic stirrer, Perfect for my needs, I use them to vortex oxygen into my drinking water, also I use them for stirring my coffee, I use powdered milk and a tablespoon of honey, and these are the perfect size for a coffee cup, ads oxygen to my coffee also! Water Vortex machines can cost hundreds of dollars, but these magnetic stirrers are cheap and do exactly the Same thing!!! ### ⭐⭐⭐ Note - This is for only 1 Even Though The Photo Shows 3 *by A***R on June 22, 2020* I should have read the description closer but be aware this is only for one unit and not three. Overall pretty nice and good quality but pricey for one piece. --- ## 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/183118432-magnetic-stirrer-stir-bar-big-2-8-inch-length-ptfe](https://www.desertcart.tn/products/183118432-magnetic-stirrer-stir-bar-big-2-8-inch-length-ptfe) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-21*