Keeps Your Liquids Fresh. Made From Metal Base, Rubber Gasket And Acrylic. Silver And Clear Color. No Assembly Required. Optic Crystal Area: 2.12 In. Dia.. Overall: 0.625 In. L X 2.125 In. W X 4.625 In. H (1 Lbs.). Our Round Clear Optic Crystal Stopper Makes The Perfect Gift For Family, Friend Or Co-Worker. It'S Also A Great Corporate Gift.