Slim D-Shape Soft-Close Seat The TOTO SoftClose D-shape Front Seat is the latest in innovative smart seat technology. For use with TOTO RP D-shape front bowl CT447CFG this unique seat is specifically designed to reduce injury and to eliminate annoying Toilet Seat Slam. Inch The seat and lid utilize a built-in SoftClose hinge system which lowers the seat and lid down to the bowl gently and quietly. The seat comes equipped with quick release hinges for easier cleaning. All mounting and installation hardware for the SoftClose seat is included along with easy to follow installation instructions and care and maintenance guidelines. Specifications Finish: White Length: 19.375 Width: 15.125 Height: 2.31 – SKU: TSTM435.