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.): 8 1/2 x 7 4/5 x 6 1/4, Material: Semi rigid polyurethane, Includes (qty.): 1 U-lock 8 1/2in.L x 7 4/5in.W x6 1/4in.H