The ultimate solution in winching techniques! The self-locking mechanism is easy to operate, and will never open under load. The hook is large enough to take both ends of a double-ply tree strap for fast and safe recovery when and where it's needed most. Additional Details ------------------------------ Product description: The ultimate solution in winching techniques! The self-locking mechanism is easy to operate, and will never open under load. The hook is large enough to take both ends of a double-ply tree strap for fast and safe recovery when and where it's needed most.