This is a compact and lightweight self-jamming pulley. It's a versatile tool with three functions: pulley, self-jamming pulley, and rope clamp. * Versatile tool with three functions: pulley, self-jamming pulley, and rope clamp. * Features a self-lubricating bushing aluminum pulley for excellent efficiency. * Cam with self-cleaning slot. * Can be locked with the cam released, allowing use as a single pulley. * Can also be used for rope ascents. Please refrain from purchasing if you are overly concerned about details. *NoクレームNoリターン (No complaints, no returns) Please consult before purchasing if you are in Hokkaido or a remote island. Thank you for viewing.