Description: Made of high quality aluminum alloy, product surface anodic oxidation, perfect to store some small item. This Waterproof holder also makes a great place for kids to carry his/her ID information. You can take this little keychain wherever you go and whatever you do. It works for camping fishing, exploring and other outdoor activities. Easy to carry, It can be clipped easily to key chains, handbags, or put it in your jacket. There are five colors to choose from, stylish and practical. Specification: Material: aluminum alloy Outside diameter: 14mm/0.55inch Inside diameter: 11mm/0.43inch Hole depth: 30mm/1.18inch Length: 50mm/1.97inch Package Includes: 2 Pieces Keychains Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.