Make of aluminum alloy , and sturdy, suitable for outdoor use, and able to withstand certain weight and pressure. The compact and designs makes it easy to carry and can be hungs on backpacks, keychains, or other items, allowing it to be used any times, . Suitable for hangings the D-shaped buckle on a backpack, it is convenient to carry keys, small tools, and other items, and add a of fashion to mountaineering and hiking activities. It can be used as a keychain, making it convenient to carry keys, and can also be hungs on bags and clothing as decorations to showcase personally Type. Suitable for outdoor enthusiasts such as , and campers, convenient to carry and use.