HealthSmart Raised Toilet Seat Riser and Toilet Seat Cushion That Fits Most Standard Bowls for Enhanced Comfort and Elevation with Slip Resistant Pads, 15.7x15.2x6.1;

Easily Add More Height to Your Toilet SeatIf you need a higher elevation toilet due to an injury, arthritis or other condition, the HealthSmart Elevated Toilet Seat is an easy answer. It will add 5 inches to the height of your toilet, making it easier to sit down and get up. Just lift your current toilet seat and set this riser on top of your toilet bowl. Four slip-resistant pads keep the seat attached to the toilet so it won’t slide around. It’s completely portable with no assembly required. You can easily take it off to clean or remove it when you don’t need it.
Features

This elevated toilet seat will add 5 inches height to your current toilet seat, making it much easier to sit down and get up. 
It fits most standard toilets and adheres to the toilet with four slip-resistant pads.
It’s completely portable with no assembly required.
Made in USA
Supports up to 250 pounds
14 ½ x 15 x 5 inches