Flush-mount cup holders prevent spills.Corrosion-proof, flush-mount polystyrene drink holders with four drain holes in the bottom. Offered in White or Black. "Standard" model fits 12-ounce beverage cans and water bottles. Larger "Two-Step" model (stepped with two inside diameters) fits can and air horns in the inner step and larger items such as cans with insulators and wine bottles in the outer step.Dimensions for Standard Series:ID:2 11/16" (6.8cm)Flange Diameter:3 1/2" (8.9cm)Depth:2 7/8"(7.3cm)Required Cutout:3" (7.6cm)Dimensions for Super Size Series:ID:3 9/16" (9.0cm)Flange Diameter:4 3/8" (11.1cm)Depth:3 1/4"(8.3cm)Required Cutout:3 7/8" (9.8cm)