Give your trailer hitch box the protection it deserves with the Reese Towpower Hitch Box Cover. Featuring ultra-rugged yet flexible engineering, the Reese Towpower Hitch Box Cover stands up to inclement weather while protecting your trailer hitch box from the elements. Perfect for long-term storage or in harsh climates. Fits 2 receivers. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Hitches/Accessories.