- Made of super hard 6061 aerospace aluminum, waterproof and anti-pressure
- Fully CNC cutting craft, army regulations three-grade hardness anodized
- Top keychain design, easy to carry and convenient to hang
- Body thread design, anti-slip and durable
- Suitable for storing small tools, matches, pills, cigarettes, flint, hearing aid batteries, tablets, vitamins, capsules, money, etc.