Stainless Steel Spring Snap Hook 6 Sizes,Marine Grade, From 1/8 To 1/2 (5/16)Jingyi spring snap hook carabiner working load limits : 280 lbs/128 kg,made of high quality 304 stainless steel. The 304 stainless steel material features strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidit..