LANGPAI Single Handle Brass Centerset Bathroom Basin Faucet One Hole Deck Mount With Porcelain Base Ornament Oil-Rubbed Black Finish G1/2 Inch Compression Water Supply Hose Matching setting hole from diameter 3.2 to 4cm. Oil-Rubbed black. Precise handle turn allows for easier temperature selection. Solid brass construction ensures quality and reliability. Flexible stainless steel supplies simplify installation,female compression G1/2" x 20 " long