Stopper, Stopper Size 15, Neck Size 39 mm, Screw Closure Size 39 mm, Bottom Diameter 83 mm, Top Diameter 103 mm, Overall Height 39 mm, Material EPDM Rubber, Product Type Stopper, Color Black, Autoclavable No, Number of Holes 0, Standards Not Applicable, Special Features Not Applicable, Resists Abrasion and Water, For Labware Type Bottles, Vials, Liner Material Not Applicable