ACCO BRANDS, INC.-FOOTREST,HGT/ANG ADJ,GY. Solemate Plus Adjustable Footrest, 21w x 14d, Gray. Reduce muscle strain and fatigue by supporting your legs at an optimum angle. Height adjusts from 3 1/2" to 5" to match your individual SmartFit® comfort color. Angle adjusts 30° and locks into place with a simple press of the foot. Nonskid surface. Nonskid surface plus nonskid feet for stability. Width: 21 in; Height: 3 1/2 in; Depth: 14 in; Diameter: N/A.