poly-cotton Bottom Of Seat Measures 15” Side To Side And 14” Back To Front; Surface Of Seat Measures 14” Side To Side And 14” Back To Front Fits Most Standard Toilet Seats – Please Refer To The Sizing Guide To Determine Compatibility With Your Toilet Made Of Durable Plastic, Won’T Chip Or Rust And Will Last For Years Raises Toilet Seat By 3-Inches With A 360-Lb Weight Capacity Reduces the distance to sit down on the toilet and does not sit too high for your feet to touch the floor.