UST Anodized Aluminum B.A.S.E. Case Anodized-aluminum capsule with screw-top cap and O-ring for a waterproof seal Securely holds matches, tinder, money, medication, and other small items Easy clip carabiner to clip to your backpack or other gear; great for geocaching Measures 2 x 0.8 inches (HxW); weighs 0.4 ounce (12 grams)