About this item This TMC White Seat and Cover features a Slow-close function that quietly closes with a tap to eliminate noise and pinched fingers It Comes with Quick-Attach hardware for fast, easy and secure installation. Distance Required Between Installation Holes: 4 3/4 inches (120mm) to 6 1/8 inches (155mm) Compatible with TMC Toilets # 29921, 29923, 29823. Compatible With Five Oceans Codes: FO-1560, FO-1599 and FO-4427. Compatible with TMC Size 99904 and 99910 The Seat and cover produced by TMC is ergonomically designed to provide maximum comfort to the user Overall Length: 17 1/4 inches (438mm). Overall Width: 14 3/4 inches (375mm). Inside Width: 9 1/2 inches (241mm) x 11 1/8 (283mm) . Height: 1 1/2 inches (38mm). FIVE OCEANS, 40 Years Developing High-Quality Marine & Outdoor Products › See more product details