The Daystar EVS Stinger bumpstops are half the price of conventional air bumps and come in two different lengths. We used a pair of the longer units (PN KU7109OBK) which have an 11.25-inch extended and 7-inch collapsed length. The shorter ones (PN KU71091BK) have an 8.25-inch extended and a 5.5-inch collapsed length. We also used the company's weld-on ends (PN KU71092) which makes for easy mounting in a TJ or XJ. The Daystar EVS Stingers can also be mounted inside traditional 2-inch air bump can mounts as well.