Type C Lab Stir Bars Set 7pcs/set Magnetic Chemical Laboratory Stirrer Spin... – Grandado Glass Thermometer Applicable for school laboratory, biochemistry, scientific research, medical use, etc. Made of PTFE material, non-toxic, high/low temperature resistant. Resistant to strong acid, alkali, various organic solvents. Strong magnetic, size, stable performance. These stir bars work with magnetic stirrer. Applicable for school laboratory, biochemistry, scientific research, medical use, etc. Report an issue with this product or seller Specification:Item Type: Type C Stir BarMaterial: PTFELength Diameter Quantity10mm 4mm 1pcs15mm 6mm 1pcs20mm 6mm 1pcs25mm 7mm 1pcs30mm 7mm 2pcs35mm 8mm 1pcs Package List:7 x Stir Bars Magnetic Stir Bar Set,7pcs Lab Type-B Mixed Size P... – Grandado Type C Stir Bar is made of PTFE material, non-toxic, high/low temperature resistant. Type C Stir Bar is resistant to strong acid, alkali, various organic solvents. Magnetic Stirrer Mixer Cross Type Stir Bars - MPCO Magnets Features:Made of PTFE material, non-toxic, high/low temperature resistant. These stir bars work with magnetic stirrer. Resistant to strong acid, alkali, various organic solvents.