Made of high quality, weather-resistant stainless steel, this ultra-handy accessory with its dual spring gates will hold, secure and connect everything from house keys and cell phones to technical camping gear. Attach valuables to the center bar for ultimate security, link gate ends to a second set of items and anchor or connect many items together. Smaller-sized S-Biners are excellent for connecting two zipper sliders on backpacks, duffels and suitcases.