Made out of semi-rigid polyurethane, this highly visible wheel chock is half the weight of rubber models. Includes built-in hand grip and mounting holes for rope, eye bolts, etc. Dimensions W x D x H (in.): 11 1/4 x 8 2/3 x 8 1/8, Material: Semi rigid polyurethane, Includes (qty.): 1 11 1/4in.L x 8 2/3in.W x 8 1/8in.H