The TOTO SoftClose Elongated Toilet seat is the latest in innovative smart seat technology. Constructed of solid, high-impact plastic, this unique seat is specifically designed to reduce injury and to eliminate annoying. Pursued the highest levels of cleanliness, incorporated high aesthetic standards, protected the environment, and worked to improve people's lifestyles. Because we continually innovate in all of these areas. Solid high-impact, high gloss polypropylene construction Elongated closed front toilet seat and cover with softclose hinge system Comfortable ergonomic design molded bumpers Resistant to chemicals and cleaning agents Top tightening mounting bolts offer above bowl installation Elongated closed front seat with lid, mounting and connection hardware included