Cow Lifter by Stone Mfg is a sturdy, cradle-like device that 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.