Material: aluminumEasy to put into pockets and bags, small size, ultra-light, easy to carry, resistant to oxidation and wear and tear.Password box shape. Fully compatible with mini box, almost all mainstream business cards, ID cards, credit cards and debit cards.Easy to use. Pull it from the side locked position to open the locked box, which can hold about 30 business cards, the most commonly used can be placed inside, just like a real password box. Quite exquisite.Packing list: 1 x password box business card packageWe only sell, not the other items in the picture.Due to differences in different monitors, the picture may not reflect the actual color of the item.Due to manual measurement, please allow minor size errors.