Features1Strong Bearing Capacity: This rope grab is made of alloy steel, which is sturdy and durable, with strong bearing capacity, and can be used safely. 2Built in Spring: This self locking rope grab has a built in spring, which is convenient for adsorption and can be automatically closed when released. 3Round Hole Design: The connection hole of the fall arrester is round hole design, which is used to connect the protector through the main lock. 4Blocking Tooth: The blocking tooth and the blocking piece interact to clamp the rope to achieve the purpose of braking, the principle is simple and easy to operate. 5Convenient Operation: It is easy to disassemble and assemble, push the lock buckle upward to open the stopper, the screw is not easy to fall off, thread the rope into the self locking device from top to bottom.SpecificationItem Type: Rock Climbing Self Locking Rope GrabMaterial: Alloy SteelGross Weight: 488g / 17.2ozProduct Size: Approx.68 x 140mm / 2.7 x 5.5inScene Use: fire rescuing, industrial equipment, aerial work, mountain climbing and rock climbing, explorationPackage List1 x Self Locking Device