3093BC, 1/4" x 3-11/16", 1/0-2/0 Zinc Chain Snap, Swivel 150 LB, Designed To Use With Rope, Chain, Strap, Animal Leashes & Other Home, Farm & Recreational Applications, Stainless Steel Spring Easy Bolt Retraction With Pull Down Trigger Open Eye Designed To Be Closed With A Vice Or Hammer After Attachment Zinc Die Cast Body.