Black Spring Snap Hook, 20 Pack 5/16 x 3 Inches Heavy Duty Carbon Steel Carabiner Clip for Camping, Fishing, Hiking, Swing and Hammock, Max Load 500 Lbs - Walmart.com
Amazon.com: 3 Inch Stainless Steel Spring Snap Hook Carabiner, 316 Stainless Steel Clips, Small Carabiner Set of 4 : Industrial & Scientific