Built tough to withstand the busiest bathroom, the MightyTuff® Slow-Close Elongated Toilet Seat from American Standard has a firm, crush-resistant lid that supports 300 lbs. without flexing. Designed to fit most elongated toilets, the MightyTuff toilet seat features quiet-close hinges to eliminate the noise of sudden slamming. This sleek, strong toilet seat is enhanced with sought-after features including an EverClean® antimicrobial surface and the Ever-Tite® locking system to stop side-to-side shifting. All mounting hardware is included. Fits most elongated toilets.