Sits flat over bathtub drains. Effectively catches hair without blocking water drainage. Silicone rim keeps Drain Protector in place. Rust-resistant stainless steel construction. Also fits over utility and laundry sink drains. Keep your bathtub drain clean and clear with the OXO Good Grips Bathtub Drain Protector. This rust-proof stainless steel Drain Protector neatly covers bathtub drains and won't get in the way. The hole pattern effectively catches hair without blocking water drainage. A silicone rim keeps the Drain Protector in place and prevents it from sliding around.