Sterling 60" W. x 34" D. Advantage white seated shower bases are made of Sterling's exclusive Vikrell material with swirl gloss finish. Vikrell is a sheet molded compound that is solid color throughout, and stronger than fiberglass. The base features a lightly pebbled slip-resistant bottom for safer footing. Must be used with Sterling wall set Model No. 62044100-0 (SKU 491748). The finished shower unit is 60" W. x 34" D. x 76" tall. Sterling Vikrell shower systems assemble with a tongue and groove system that minimizes the need for caulk. Use Sterling door model No. SP5975-59S-G06, (SKU 444255). Sterling Vikrell fixtures are backed by a 10 year consumer warranty.