Lightweight design with a working capacity of 400 lbs. Constant lock-up rate prevents any erratic, jerky lock-up. Internal load indicator alerts user that the unit has been involved in a fall and must be removed from service. Field replaceable web lifeline greatly reducing cost of ownership and downtime. No annual factory re-certification required. Meets all applicable OSHA requirements, ANSI A10.32, and ANSI Z359.1 standards.