Kensington Products - Kensington - Solesaver Footrest, 14w x 18d x 2-1/2 to 4-1/2h, Black - Sold As 1 Each - Keeps legs elevated for improved posture, circulation and comfort. - Offers three height adjustments and three tilt choices from 2 1/2" up to 4-1/2" high. - Large nonskid surface. Keeps legs elevated for improved posture, circulation and comfort. Offers three height adjustments and three tilt choices from 2 1/2" up to 4-1/2" high. Large nonskid surface.