Beelee Antique Brass Deck Mounted Three Holes Dual Handle Widespread Bathroom Sink Faucet Use for bathroom sink and bathtub Spout Length: 90mm (3.54 Inch); Spout Height: 110mm (4.33 Inch) Installation Thickness of the Basin: Less than 3cm (1.18 Inch) Distance between two Installation Hole: 10-15cm (3.94-5.91 Inch) Installation Hole Diameter: 3-3.5cm (1.18-1.38 inch), Recommend 3cm (1.18 Inch)