KOHLER K-1118-RA-0 Expanse 60" x 30" To 36" Curved Alcove Bath with Integral Apron, Tile Flange and Right-Hand Drain, White N/A Imported Curved basin and integral apron create a graceful and spacious bathing experience Tile flange helps prevent water from seeping behind wall and simplifies alcove installation Textured bottom surface Constructed of acrylic. Material:Acrylic