KONE Garbage G231 3-1/2-inch Kitchen Sink Drian Removable Deep Waste Basket/Strainer Assembly/Sealing Lid, Stainless Steel 304 Stainless Steel Made in china material 304 stainless steel construction Practical design and exquisite workmanship rust, durability and reliability Fits 3 1/2 drain opening suitable for most american families kitchen sink Removable separate deep basket prevents debris from clogging drain pipe Warranty: 2 years (from order date), if you are not satisfied with KONE composite drain assembly for a full refund Rubber gasket seal lid Removable basket strainer 304 stainless steel construction PVC waterproof pad Rubber gasket ring Locking nut