Houzer BG-4901 Wirecraft Bottom Grid is made of T304 stainless steel with protective feet. This in-the-sink bottom grid helps to reduce noise while cushioning fragile dishes and protect your sink surface from scratch. It measures 21 1/4" x 13 1/4" and is custom designed to fit Houzer sink models NVS-6500. Houzer BG-4901 comes with a 1-year limited warranty.