1, 2, or 3-hole installation:- converts existing 3-hole setups to install single-hole faucets. Rust-free:- Rust, corrosion, and tarnish-resistant due to its solid brass construction, this deck plate is as sturdy as it is beautiful. Easy Installation:- Includes all mounting hardware for easy installation. Zinc Construction:- Made of high-quality zinc for durability. Premium Finishes:- The finish is coated in 7 layers to resist rust, corrosion, and tarnish. Features VIGO's quality-assured Limited Lifetime Warranty California Residents:- See Prop 65 WARNINGS for more information