Description: PTFE Magnetic Stirrer Mixer Stir Bar Lab Experiment Equipment Accs Stiring bar mixers are coated in white PTFE, corrosion resistant, acid and alkali resistant, high temperature resistant Can be used with corrosive chemicals, and helps reduce friction and wear while spinning Suitable for stir a liquid or solution in biological, chemical, research laboratory applications Also can be used in food, cosmetics or other things Specification: Material: PTFE (Polytetrafluoroethylene) Color: White Size: Approx. C15 x 55mm/0.59 x 2.17inch B9 x 50mm/0.35 x 1.97inch A23 x 96mm/0.91 x 3.78inch A20 x 60mm/0.79 x 2.36inch B8 x 40mm/0.31 x 1.57inch C7 x 50mm/0.28 x 1.97inch C16 x 35mm/0.63 x 1.38inch A25 x 70mm/0.98 x 2.76inch B9 x 28mm/0.35 x 1.10inch B8 x 30mm/0.31 x 1.18inch B9 x 35mm/0.35 x 1.38inch C10 x 40mm/0.39 x 1.57inch C10 x 50mm/0.39 x 1.97inch B7 x 35mm/0.28 x 1.38inch B10 x 40mm/0.39 x 1.57inch B9 x 25mm/0.35 x 0.98inch A20 x 70mm/0.79 x 2.76inch A23 x 70mm/0.91 x 2.76inch C8 x 60mm/0.31 x 2.36inch C10 x 35mm/0.39 x 1.38inch Package Includes: 1 Piece PTFE Magnetic Stirrer(4 Pack) Note: Please allow 1cm measuring deviation due to manual measurement.(1cm=0.39inch) Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!