Rail Skate for 85-141 lb rail. Made from heavy-duty cast special ductile alloy designed to carry car wheels and prevent flat spots or other damage as a result of excessive application of hand brakes. Fits rail heads between 2-1/2 and 3-1/16 in. width (85-141 lb rail sizes). Easily handled by one person, yet are tough and durable enough to meet track yard car handling requirements. Easy to Apply.