Stopper Stopper Size 13.5 Neck Size 25 mm Screw Closure Size 25 mm Bottom Diameter 62 mm Top Diameter 75 mm Overall Height 35 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 5 mm Package Quantity 3