Foot-activated height adjustment allows one-touch adjustment of footrest height or angle or both. Ideal for office, home office, commercial and industrial applications for use with chairs or stools. Centrally positioned lift activation button allows one to effortlessly position the platform height at any setting. Innovative pivoting feature tilts the platform to different angles. Texturized rubber surface is slip resistant. Recommended Applications: OFFICE, EDUCATIONAL, INDUSTRIAL; Width: 20″; Height: 4.5″ to 17.25″; Seat/Back Color: N/A.