The aesthetically-pleasing Toilevator® adds 3-1/2in (8.9cm) to the height of standard 14in to 15in (35 to 38cm) tall toilets with round or elongated bowls. The extra height is added at the bottom of the toilet, between the floor and the base, so that the original seat remains in use. Includes instructions and everything needed for easy installation. Provides a safe, economical and easy-to-clean alternative to raised toilet seats. The Toilevator® measures 23in long x 11-1/2in wide x 3-1/2in tall (58cm x 29cm x 8.9cm).