Mat cushions dishes and glassware inside the sink to help prevent breakage. Perforated for fast drainage. No. 1291-AR-BISQU: Bisque, 10.7" x 12.7" No. 1291-AR-WHT: White, 10.7" x 12.7" No. 1292-AR-BISQU: Bisque, 12.8" x 15.9" No. 1292-AR-WHT: White, 12.8" x 15.9"