1. Material: Aluminum alloy+ABS+PU 2. Aluminum alloy card box, pop-up design, can hold multiple cards 3. Other compartments: rear tracker fixing ring, front V-shaped card slot, inner card slot 4. RFID anti magnetic shielding to protect information security 5. PU leather material, delicate and soft, wear-resistant and durable 6. Size: 102x74x27mm 7. Net weight: 97g