The work horse sink strainer, fixed post stainless steel basket with safety rolled edge, neoprene stopper, rubber locknut washer, locknut friction washer, die cast locknut, flanged tailpiece washer, die cast long shank slip nut, stainless steel body, boxed. The product is manufactured in china. Easy installation and easy handling. From the Manufacturer Work Horse Kitchen Sink Strainer For 3-1/2-Inch Diameter Hole. Stainless Steel Body. Safety Rolled Edge Rust-Proof Stainless Steel Basket.