The LockStroke Rescue Strut consists of four sizes of extendable struts. Each Strut consists of a 3 in (7.5 cm) aluminum alloy tube with a solid 2-1/2 in (6.35 cm) aluminum alloy moveable grooved shaft, and can be extended manually or activated by air, carbon dioxide, or nitrogen. The LockStroke Rescue Strut locks automatically in…