Yonik High-ranking New Style Red Brown Antique Brass Bathroom Dual Handles Mixer Tap Built-in Water Filter Touch on Bathroom Sink Faucet Function:Bathroom Sink Faucet Material:Solid Brass; Finish:Antique Brass Feature:Deck Mount, Two handles With two pipes for hot and cold water The diameter of the hole in your sink:3.2cm-4.5cm.