Product Title:16 Pcs Ptfe Magnetic Stirring Bar Set - Laboratory Stirrer Mixer Bar - Stir Plate Magnet Bar Rod St. These 16pcs set meets all your everyday needs. Small size bars are suitable for 25ml, 50ml, 100ml, 250ml, 500ml of beakers, while big size bars are for 250ml, 500ml, 1000ml, 2000ml, 3000ml of beakers .you can place inside a container of liquid or solution that is seated on a magnetic stirrer, and use a rotating magnet or multiple stationary electromagnets to create a rotating magnetic fieldWide application: the stir plate magnet bar can work well with various types of magnetic stirrers or heating stirrers, and is often applied to stir a liquid or solution in scientific research, universities and laboratoriesQuality material: the rod magnetic mixer is made of quality PTFE, and its cylindrical shape and smooth surface will reduce friction and improve smooth rotation, nice for laboratorycolor: WhiteMaterial: PTFEPackage Contents:16 x PTFE magnetic stirring barOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-67870 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it Due to different measurement methods, please allow a measurement error of 2-3cm. Due to the problem of shooting tools and light, please allow the color difference between the picture and the product.