Australian made, heavy duty twist lock crab claws.. designed to be used only with the twist lock tent poles (bent spigot) two stage locking crab claw, securely connects to the bent spigot of the tent pole, creating a spreader bar to help keep awnings tight.. particularly good with the oztent range of tents. Ideally purchase two of the crab claws, and 4 upright poles.. now stocking the large crab claw, which is just 200 mm longer, but this is needed for the Oztent RV5.. check the kit suitable for the RV5 also.