The 2-bar Wide-base portable tire inflation cage will be a great life saving equipment to add to your service truck. Rolling in your larger Super single tires will be easy with its wide base. Its compact steel structure and folding hinges make it quick and easy to pull out of any restricted space. Designed for indoor or outdoor tire inflation, it will keep its color and luster. The Portable tire inflation cage series safety exceeds OSHA standard 29 CFR 1910.177 in the U.S. With superior manufacturing materials and finish, MARTINS’ tire inflation cages are safest choices on the market.Before using the product, please read the instructions carefully.