AjustLock Extra Heavy Duty Mixed Finishes Adjustable Barrel Bolt Catches are compatible with 5 and 8 inches barrel bolt locks. Per Jar contains 5 unit mixed finishes (zinc and black) extra heavy duty barrel bolt catches. The catches work with any misaligned barrel bolt and solve the common barrel bolt door shift issue. With AjustLock catch, you install it once and it adjusts on its own.