"The Ken-Tool 3-bar passenger/light truck tire inflation cage is a must-have item for any shop working with tubeless and multi-piece rims. U.S.A. Measures 30 in. from base to inside bend of cage, Material Steel, Base L x W in. 21 1/2 x 22, Bars qty. 3, OSHA Approved Yes, Product Type Cage. Works with run-flat, low-profile and other tires that are difficult to seat Guards against blown lock rings and rims Made of heavy-gauge steel tubing welded to steel base"