1. Material: Copper 2. Application: backpack, suitcase, drawer, door, etc. 3. Multi-layer electroplating on the surface, uniform and meticulous, beautiful and waterproof 4. Bold locking beam, safe and anti-theft durable 5. Anti-corrosion, not easy to rust 6. Note: open key: one key open N lock; no open key: one key only open one lock
