Elongated Toilet Seat:Fits all toilet brands including Bemis, Crane, Caroma, Delta, Eljer, Gerber, Kohler, Toto, Universal Rundle, American Standard, etc. Also suitable for toilets with non-standard mounting hole spacing of 4.5-6.5 inches. IMPORTANT: Before you order, please measure your toilet (Length about 18.5 inches) to determine what you need is the ELONGATED size Slow-Close Seat:The toilet lid and toilet seat can be closed slowly and quietly, which will not cause loud slamming or hand pinched. It also dose not wake up your family during sleeping time Quick Release:Click the Button Beside to take off the Toilet Seats and Cover for cleaning, Quick Release and Easy Remove. No tools required PP material: Made of polypropylene composite material, which is a safe and durable environmentally friendly material, non-toxic, odorless, tasteless, light in weight and good in toughness. Tested to withstand 400 lbs without worrying about breakage of premium materials Soft Toilet Seat: Soft, slow hinges, practical and durable soft toilet seat to minimize noise and interference.Adjustable hinge, suitable for most standard toilets in the United States Stable Toilet Seat: The toilet seat bears 400 pounds. This toilet seat has a non-slip cushion, which is always stable and not easy to move Made of polypropylene composite material, which is a safe and durable environmentally friendly material, non-toxic, odorless, tasteless, light in weight and good in toughness. Tested to withstand 400 lbs without worrying about breakage of premium materials.