5pcs Type C White Color PTFE Stir Bar Laboratory Stirrer Flea Lab Spinner for Magnetic Mixer

Featur es: H igh temperature resistance, maximum working temperature is up to 250 celsius . Corr osion resistance, stir bars are chemical inert to most chemicals and solvent, such as strong acid, alkali, water and organic solvent . Hi gh lubrication, stir bars have the lowest friction coefficient among solid material . Lo w temperature resistance, they have good mechanical toughness, and will keep 5percent elongation even at 196 celsius . N o adhesi veness, they have the lowest surface tension among solid material, and will not stick to any substance . Specificat ions: Material: PTFE Type: C Color: White Size: 5*15mm; 7*30mm; 9*30mm ( Optional ) Quantity: 5pcs Package Includes: 5 x Stir Bars .