Grip-Tight installation hardware makes it easy to fasten the toilet seat and lid – everything is done from above the bowl ReadyLatch hinge on KOHLER toilet seats provide a positive lock/unlock latch to securely hold seat in position yet it easily removes for cleaning or adjusting fit. Grip-Tight bumpers hold it firmly in place Quiet-Close elongated seat closes quietly Toilet nightlight intensity designed to provide enough illumination to see the toilet without disrupting nighttime vision. Choose between three brightness levels: a soft glow or brighter illumination Dual LED lighting in white toilet seat offers guiding light when lid is down and task light when lid is lifted. Illumination cycle with automatic 10-hour nightlight