Product Features: 4 pre-drilled installation holes "“ for use with bidet faucets that require 4 holes for installation Drilled for flushing rim and vertical spray faucets Bidet includes integral overflow "“ prevents accidental over-filling Covered under Toto's 5-year limited warranty Made from porcelain - chemical resistant, easy to clean Floor mounted installation type provides stability as well as flexibility when deciding where to mount the bidet All hardware required for installation is included Product Specifications: Overall Height: 15" (measured from the bottom of the base to the highest point on the bidet) Overall Length: 24-7/8" (measured from the back of the bidet to the front of the rim) Overall Width: 14" (measured from the furthest point on the left to the furthest on the right) Waste Size: 1-1/4" Number of Faucet Installation Holes: 4 Faucet Hole Size: 1-3/8" Pop-Up Hole Size: 1-1/8" Spray Hole Size: 1"