Constructed of a double layer of heavy-duty, rip-stop truck mesh. A center hole allows installation of the safety chains and provides a clean look. The Rock Screen is easily height adjustable by simply rolling up from the bottom. The snap-on extrusions are included to contain the rolled up Rock Screen and to provide a finished look. Includes 1 Rock Tamers screen, 6 black plastic extrusions, 2 black steel tension clamps, 4 black plastic loop clamps, 4 stainless steel M5 x 20mm Phillips bolts, 4 steel M5 nylon locking nuts, 4 stainless steel M6 x 27.5mm hex bolts, 4 stainless steel M6 washers, 1 M6 hex key, 1 anti theft Star Pin Key . Keep key for future use. Easy to install with instructions in English, Spanish and French included in packaging. Rock Tamers mud flaps sold separately. PROTECT WHAT YOU TOW!® Stops stones, gravel and debris from going between the mudflaps Constructed of heavy-duty, rip-stop truck mesh Center hole allows safety chains and trailer wiring installation for a clean look Sized to fit the Rock Tamers at any width Measures 62″ L x 21″ W