1. Built-in anti-magnetic zippered pocket for coins and loose change. Prevents magnetic field weakening 2. Smooth surface with transparent label, polyester lining 3. 4 magnetic card slots + 1 aluminum alloy card slot (holds 7 magnetic cards total) 4. Material: PU, polyester 5. Weight: about 115g 6. Size: about 10.5 x 7 x 2cm 7. Note: wallet only, no others