LinkMejor White Tapered Shaped Solid Rubber Stopper for Lab Tube Stopper Size 00 20Pcs

Descriptions:Not easy to deform, moderate hardness, manufactured according to standards, materialsHigh elasticity, good insulation and sealing performance, high temperature resistance ,acid and alkali resistance, will not dissolve and swell in acidic liquids.Normal using: Can be used to block glass ports, pipe mouths, fish tank openings, etc.Note: Due to manual measurement, the size may have an error of +/- 1-2mm. And a slight deviation in color due to different batches. Features:Bottom Diameter(small-end): 11mm / 0.43inchTop Diameter(big-end): 15mm / 0.59inchBody Height: 20mm / 0.79inchMaterial: Rubber Fit for hole: 11-15mmColor: White Package Content:20 Pcs x Rubber Stopper