Greenspring Contemporary Bathroom Sink Vessel Faucet Lavatory Mixer Tap Single Handle Faucet Tall Body,Brushed Nickel Greenspring FAUCET:The Hole Diameter Of Your Sink :3.3cm-4.5cm1.3''-1.77'' Could install this faucet or You have to drilling the hole PREMIUM QUALITY: Brass faucet body, ensures quality and longevity EASY OPERATION: Single lever design for effortless flow and temperature control Greenspring FAUCET:Standard 3/8-In compression threads,Easy to install LIFETIME BREAKAGE WARRANTY&30 DAY FREE EXCHANGE GUARANTEE: In case any broken problem happens, contact Greenspring service to help you solve the problem until satisfaction.