ALTTIMERY Big Capacity Outdoor Survival Storage Container Dry Box Waterproof Pill Fob Capsule Match Case Battery Holder Case Material: Aviation aluminum Military Three Grade Hard Oxidation CNC Cutting and High Precision Screw Joint, Fully Waterproof and Air Tigh Size: appr. 13cm*3cm/5.1inch*1.1inch; Inner diameter: appr. 2.8cm/1.10inch Both Top & Bottom Opening design, very easy to use Perfect to store Pills, Tablets, Vitamins, Capsules, Money, U-disk, Batteries and Other Accessories