CNBTR  50mm Silver M5 Carabiner Spring Camping Climbing Lock 304 Stainless Steel Snap Hook Eyelet Link Pack of 5 It can be used for the chain link, wire rope hanging, hanging keys, pet chain connection, mountaineering rope connection Designed for High load-bearing and Sturdy don't rust It is outdoor and damp environment the best use of connection accessories It is made of high quality stainless steel