Designed to fit most round-front toilets this Impro toilet seat has a lid design that completely covers the seat for a clean unified look to complement contemporary bathroom decor. The seat mounts easily from the top of the bowl using only a screwdriver thus eliminating the need to reach under the bowl to tighten. And with other features like Grip-Tight bumpers that hold the seat firmly in place to prevent shifting Quiet-Close technology to prevent the seat from slamming and a ReadyLatch hinge to make seat removal easy for cleaning we give you the right mix of functionality and style to bring comfort to your daily routines Features: Lid design conceals toilet seat to create a clean sleek look Grip-tight installation hardware makes it easy to fasten the seat "“ everything is done from above the bowl Grip-tight bumpers hold seat firmly in place Readylatch hinge provides a positive lock/unlock latch to securely hold seat in position yet seat easily removes for cleaning or adjusting fit Single-hinge cover simplifies cleaning Quiet-close round-front lid and seat prevents slamming Contoured seat for user comfort Color-matched plastic hinges Toilet seats are not returnable to Kohler co. if opened or outside of original packaging Product technologies: Quiet-close™: Innovative features include technology that prevents lids from slamming and seats that remove easily for cleaning. the quiet-close toilet seats are engineered to close with the slightest touch, reducing unwanted noise often associated with lid slamming Readylatch™: Readylatch™ hinge provides a positive lock/unlock latch to securely hold seat in position, yet easily remove for cleaning and enable adjustability for proper fit Specifications: Height: 1.06" Width: 14.69" Inside Length: 10.13" Inside Width: 8.38" Distance Required Between Installation Holes: 5.38"