KOHLER K-4639-58 Cachet Quiet-Close with Grip-Tight Bumpers Round-front Toilet Seat, Thunder Grey Quiet-Close functionality eliminates slamming and increases hygiene and safety Quick-Release functionality allows the seat to be removed easily from the toilet allowing for convenient cleaning Engineered to ensure a proper fit with subtle styling to complement toilets of many different designs Made of solid polypropylene and is resistant to staining, fading, chipping and peeling Fits most one- and two-piece toilets L 16-1/16", W 14-3/16"