KES Kitchen Sink Drain, Stopper (3-1/2-Inch) with Basket Strainer and Cover Lid Rustfree SUS 304 Stainless Steel and PP, S3001 STAINLESS STEEL BODY: Stainelss steel housing, basket strainer and cover, ensuring quality and longevity. RUSTPROOF: T-304 premium-grade stainless steel, with an added 18/10 Chromium/Nickel content to protect against corrosion & rust. UNIVERSAL SIZE: For standard 3-1/2-Inch sink hole. Removable stainless steel basket strainer with open/close stopper that seals tightly Contemporary / modern style