Your best online business partner. Highline Quiet-Close Elongated Toilet Seat in White (3-Pack). Engineered to fit 1 and 2-piece elongated toilets, this Highline seat features a single-hinge design that makes for easier cleaning. Innovative Quiet-Close technology prevents noisy slamming. Unique Grip-Tight bumpers hold the seat firmly in place and prevent shifting. Grip Tight Bumpers, Soft Close.