Designed by Sierra Safety, this new litter pre-rig is really deluxe. Fully adjustable Y spider suspension system drastically reduces congestion at the upper attachment point. Configured with 2 to 1 mechanical advantage rescuer attachment strap for easy adjustability. Adjustable to a minimum height of 18 inches above the litter for the tightest helicopter evacuations. The spider adjusts to a maximum length of 5 feet utilizing quick adjustable mil spec hardware. Unique single attachment of both victim and rescuer adjustable straps reduces further congestion in the collection ring. Steel O ring strength is 10,000 lbf. Overall strength 5000 lbf.