Elongated seat with lid – designed to complement a wide variety of elongated toilet designs Covered under PROFLO's 1 year warranty Constructed of plastic Secure mounting assembly while keeping installation fast and easy All hardware required for installation is included PROFLO PFTSE2000 Features: Elongated seat with lid designed to complement a wide variety of elongated toilet designs Covered under PROFLO's 1 year warranty Constructed of plastic Secure mounting assembly while keeping installation fast and easy All hardware required for installation is included PROFLO PFTSE2000 Specifications: Height: 7/8" (top to bottom) Depth (Projection): 18-7/8" (back of the hinges to the front most part of the seat) Width: 14" (left edge to the right edge of the inner opening of the seat) Inside Length: 12" (back to the front of the inner opening of the seat) Inside Width: 8-7/8" (left edge to the right edge of the inner opening of the seat) Distance Required Between Installation Holes: 5-1/2"