The ToolBox from Black Diamond protects the rest of your equipment and your backpack from the sharp edges of your ice screws or crampons. It has a practical zip pocket on the inside for spare bits and files. It is closed on the outside with Velcro straps and can also be compactly secured with a quick-release compression strap. With the suspension loop, the bag can also be attached to your climbing harness if you want to see more than the inside of your backpack.