Neogen's high-quality OB accessories are a comfortable fit for any delivery. The OB handle is 1/2 in Dia and has a poly-coated grip. The larger diameter and comfort grip make those difficult births easier on your hands. The durable, high strength OB chains come in 30 in, 45 in and 60 in lengths. Both the chains and handles are zinc-plated with an added rust inhibitor.