Koch Industries 2146291 Swivel Round Eye Trigger Snap, 2-1/2-Inch with 3/8-Inch Eye, Nickel Finish Designed for use with rope, chain, straps, animal leashes and other home, farm and recreational applications Swivel round eye eliminates tangling Used to connect lifting and rigging attachments Maximum load of 30-pounds Spring-loaded bolts provide secure closure; easy-open thumb lever