Made of high quality, weather-resistant stainless steel, this ultra-handy accessory with its dual spring gates will hold, secure, and connect everything from keys to water bottles to gear. Smaller-sized S-BinersA(R) are excellent for connecting two zipper sliders on backpacks, duffels, and suitcases. We know that one size doesn&';t fit all, so carry four different sizes so you can choose the right size for the task at hand. We&';ve found that the smaller sizes work great for hanging smaller items from a purse or backpack strap, attaching to individual keys, or hanging a plant from a ceiling hook. The larger sizes work great for bigger jobs like hanging a paint can from a ladder or a tool to your tool belt. But, the list goes on and on. We think Backpacker Magazine said it best when they wrote "Don&';t ask yourself if you need this useful little widget. The question is: how many?" Size #2: Dimensions: 1.95" x 0.85" x 0.24" | 49.75mm x 21.71mm x 6.15mm Weight: 0.25oz | 7.00g Weight Rating: 10 lb. Size #3: Dimensions: 2.67" x 1.18" x 0.26" | 67.97mm x 30.09mm x 6.83mm Weight: 0.49oz | 14.00g Weight Rating: 25 lb. Size #4: Dimensions: 3.52" x 1.57" x 0.31" | 89.41mm x 39.92mm x 7.94mm Weight: 1.06oz | 30.00g Weight Rating: 75 lb. Size #5: Dimensions: 4.38" x 1.93" x 0.33" | 111.41mm x 49.19mm x 8.45mm Weight: 1.69oz | 48.00g Weight Rating: 100 lb. WARNING: Not for use where disengagement could result in bodily injury or property damage. Not for climbing.