The mini shackles bracelet made of marine grade 316 stainless steel ,very durable and never rust,will last a lifetime. Tiny shackle fit most paracord bracelet, survival bracelet, paracord products, and other crafts. Stainless shackle 3mm inside width : 9.5mm, opening : 7mm,Thickness of the bow: 1/8" (3mm),the pin is 3mm like the shackle body. Bracelet shackle working load limit (WLL): 80 lbs. Package:10 pieces stainless steel shackles. JY-MARINE 3mm mini shackle made by stainless steel 316, Superior strength & rust resistance over grade 304, Galvanized, Cast Iron. It is strong and durable,can be used for a long timeGreat for jewelry ,great accessory for making paracord Survival bracelets. it is small,good surface,not very shine,When you want to DIY Survival Bracelet,this kind of buckles will be your first choice.Not recommended for lifting and climbing.