KES Invisible Tile-in Drain 6-Inch by 6-Inch SUS 304 Stainless Steel Rustproof with Strainer, V252S15 ALL METAL: All stainless steel construction, ensuring quality and longevity. RUST PROOF: Construted of Type 304 premium grade stainless steel, with added 18/10 Chromium/Nickel content to protect against corrosion & rust. Dimension: 15 CM (5.9") by 15 CM (5.9") Removable strainer and drain pipe are also made from Type 304 Stainless Steel. Drain size: 50 MM or 2-Inch O.D., 37 MM or 1.46-Inch in height.