1.Round Toilet Seat: It is suitable for most standard round toilet seats ( Length 16.5', Width 14.2', Mounting hole distance 4.9'~ 6.6' Adjustable ). We will gladly help if you're not sure your toilet size 2.Quick release seat easily removes for cleaning or adjusting fit. 3.Top Fixed: top fixing installation hardware makes it easy to fasten the seat. In addition, We also provide a dedicated toilet seat cushionthe toilet seat stable and comfortable 4.Slow close: The toilet lid and toilet seat can be closed slowly and quietly, which will not cause loud slamming or hand pinched. No slamming. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.