The original Alpha Locking Lanyard is based on the AIS System by WillowWood. It is great also for those users who have difficulties using a pin system. Unlike lanyard-systems without any automatic lanyard-locking-mechanism, the locking lanyard system locks itself, thereby guaranteeing maximum security. The system is also exceptionally lightweight.
Another special feature is the built- in one-way expulsion air valve through which excessive air can be released distally.