Provides the knees comfortable support and protect – so no more sore knees! A 1-1/2 In. thick foam cushion creates a comfortable surface. The 12-1/4 In. x 13-1/2 In. pad is securely fastened to a durable 14 In. x 24 In. tray for long use. The lightweight polypropylene tray has hand holds for easy transport. The tray is both washable and chemical resistant. The washable cushion provides relief to sore knees. A favorite of concrete finishers, tile installers, plumbers, electricians, gardeners, automotive mechanics, and more.