Our 4" x 4" x 92" Bumper Cover is made of Extruded aluminum with an insert slot to accept  a matching insert.  It also comes with 4” end caps. This is a Universal bumper cover that has been used on many different types of RV’s and Motorhomes like Fleetwood, Winnebago, Forest River, Thor, Skyline, Monaco etc. It can be cut down to any size you need. Bumper Covers are in stock and available for immediate shipment from our California or Georgia locations!