This 3 pack of Stainless Steel S-Biners is 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(R) are excellent for connecting two zipper sliders on backpacks, duffels, and suitcases. Size # 2 Dimensions: 1.95" x 0.85" x 0.24" | Weight rating: 10 lb. Size # 3 Dimensions: 2.67" x 1.18" x 0.26" | Weight rating: 25 lb. Size # 4 Dimensions: 3.52" x 1.57" x 0.31" | Weight rating: 75 lb. | Nite Ize Stainless Steel S-Biner 3 Pack in Black | Size Set 2-4