1. Material: aluminum alloy2. Scope of application: home, office, gym, factory, construction site, etc.3. Large space, multi-function storage of keys, bank cards, U disks, SD cards4. Strong and durable, safe and reliable5. Dimensions: overall 85x40x117 mm, internal 65x90x33 mm6. Weight: about 500 gramsSteps:1. Open the combination lock key box2. Flip the top switch inside the box3. Pull up to unlock the lock and hang it on the door

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