EDC Outdoor Gear Survival Waterproof Pill/Match Case Box Container Seal Capsule Bottle Camping Hiking Tool 100% brand new and high quality It is mainly made from aluminum, and the solid aluminum bar is made of CNC wire. It is treated by oxidizing-heat-treatment, which is a more scratch-resistant solid. It has a waterproof rubber ring with the screw thread design, which improve the waterproof level. The test of diving resistance to water can reach 50 meters. Material: aluminum alloy Size (outside): 9cm (L) x 3cm (D) Size (inside): 7.8cm (L) x 2.4cm(D)