3M-FOOTREST,ADJ,METAL,BK. Adjustable Steel Footrest, Nonslip Surface, 22w x14d, Charcoal/Black. Extra-wide platform provides ample space for both feet. Heavy-duty steel construction for extra stability. 3M™ Safety Walk™ slip-resistant surface helps keep feet from sliding. Independent height/angle adjustment—angle adjusts to 30°, height adjusts from 4" to 4 3/4". Width: 22 in; Height: 4 in; Depth: 14 in; Diameter: N/A.