Nite Ize S-Biner Dual Carabiner Aluminum Blue 3in. You can link the two ends together to create a temporary connection or anchor the carabiner to a fixed location. The two steel spring gates hold the gates open in the open position and are closed by double-clipping the gate to the object you want to keep secure. The Nite Ize S-Biner also acts as a pick-and-pluck to keep nails screws and other small objects from sliding off. You can purchase different sizes of these Nite Ize S-Biner Dual Large Carabiners in different colors and they can be used for so many different things you'll find a use for them all. Specifications for Nite Ize S-Biner Dual Carabiner Aluminum: Manufacturer: Nite Ize Color: Blue Weight Capacity: 25 lb Package Contents: Nite Ize S-Biner Dual Carabiner Aluminum Nite Ize SBA3-03-R6: S-Biner Dual Carabiner Aluminum Blue 3in