(Stone Manufacturing Company) Sturdy, cradle-like device does away with pressure points, so no bruising or damage to nerve endings which may cause permanent injury. Cows can be lifted comfortably for 2-3 hours or longer to get circulation and movement in the legs. Sling is made of heavy duty PVC strengthened with nylon webbing. Sling wraps around steel tubing frame. Unit can be attached quickly and securely to the loader of a tractor or to a block and tackle.