TOTO® SoftClose® Slow Close Round Toilet Seat and Lid is the latest in innovative smart seat technology. Constructed of solid, High-Impact Plastic, this unique seat is specifically designed for a gentle, softer close. 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 engineering of SoftClose® incorporates TOTO’s high standard of quality and consumer ease. Top tightening mounting bolts ensure easy installation. All mounting and installation hardware for the SoftClose® seat is included, along with easy to follow installation instructions and care and maintenance guidelines.