Material: 304 Stainless Steel (304 stainless steel has excellent corrosion resistance and can be used for a long time.) The opening can be widened with your fingers and snaps shut with a spring when released. The shape is perfect for securing ropes. Stainless steel is preferred for sea kayaking and marine work because aluminum ones quickly become difficult to open. ■ Catalog Specifications Total Length: 80mm, Load Capacity: 250kg ※ No plating is applied. 　 Even unused stainless steel products may have scratches. 　 Corrosion will not occur from scratches. ■ Other sizes are also available. We sell all 7 sizes, so please consider each size. The opening can be widened with your fingers and snaps shut with a spring when released. To check the stock of stainless steel carabiners, please check from #StainlessCarabinerIsHere ↑ ※ If you wish to purchase 2 or more fishing tackle items (including this product), there is a set discount. Rust-resistant for kayak fishing High-strength carabiner hook/leash cord tools...Carabiner Tools...Carabiner Type...Mountaineering/Climbing Equipment Type...Carabiner/Sling