Quality grade 100 European fittings from KWB, a Pewag company. The Signal violet color allows for easy identification while in use. The self-locking hooks have a locking mechanism that is much more durable than the standard stamped latches. Applying a load to the hook automatically closes and locks the hook. The load must be fully grounded before the lock can be released. The clevis style attachment is designed for attaching this hook to chain.