Heavy duty 30 oz. marine grade vinyl shields against stains and mildew. UV-resistant materials – rugged polypropylene seat shell. Built-in seat lock – locks when folded. Universal seat bolt pattern 5-1/4″ x 5-1/4″. Includes: (2) 1/4″-20 x 3/4″ and (2) 1/4″-20 x 1″ stainless steel bolts. Dimensions: 23-1/2″ H x 18-1/2″ W x 19-1/2″ D. White/White/Pearl White