Designed to fit most 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. 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.