Stopper, Stopper Size 0, Neck Size 18 mm, Screw Closure Size 18mm, Bottom Diameter 9 mm, Top Diameter 12 mm, Overall Height 18 mm, Material EPDM Rubber, Product Type Stopper, Color Black, Autoclavable No, Number of Holes 1, Standards Not Applicable, Special Features Not Applicable, Resists Abrasion and Water, For Labware Type Bottles, Vials, Liner Material Not Applicable, Hole Diameter 3 mm, Package Quantity 100