Cap Diameter 20 mm Screw Closure Size 20-400 mm Closure Material Polypropylene Product Type Screw On Cap Closure Color White Closure Liner Material PTFE Faced Polyethylene Closure Type Screw On Autoclavable No Vented No Special Features Provides Excellent Moisture Barrier and Can Be Used with Mild Acids Alkalis Solvents and Alcohols Closure Liner Design Solid Package Quantity 144