Duravit 006381 Features: Round seat with lid - designed to complement a wide variety of round Duravit toilet designs Covered under Duravit's 5 year Coordinates with products from the Starck 3 line seamlessly Secure mounting assembly while keeping installation fast and easy All hardware required for installation is included Duravit 006381 Specifications: Height: 1-3/4" (top to bottom) Depth (Projection): 17-1/8" (back of the hinges to the front most part of the seat) Width: 14-5/8" (left edge to the right edge of the inner opening of the seat) Inside Length: 12-11/16" (back to the front of the inner opening of the seat) Inside Width: 8-11/16" (left edge to the right edge of the inner opening of the seat) Distance Required Between Installation Holes: 10-5/8"