Extended toilet seat: applicable to most toilet brands, including Bemis, Crane, Caroma, Delta, Eljer, Gerber, Kohler, Toto, Universal Runnle, American Standard, etc. It also applies to toilets with non-standard installation hole spacing of 4.5-6.5 inches. IMPORTANT: Before ordering, please measure your toilet (about 18.5 inches in length) to make sure you need an extended 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 YNR Round Toilet Seat with Slow Close Hinges, Standard Elongated Toilet Seat with Non-slip Seat Bumpers, Easy to Install & Clean, Heavy Duty PP Material, Fits All Toilet Brands (Y7)