Description: Portable aluminum alloy micro 10 pieces TF slots and 3 pieces SD slots memory card storage box protector holder. The case is made of aluminum alloy, corrosion resistant, large capacity,small size,lightweight and practical. It is easy to open and close when you put in or take out the memory card. Materials used in internal slots can reduce the static electricity. The memory card protective case can protect your valuable memory cards free from scrathes,damage or abrasion. Specification: Mtaerial: Aluminum Alloy Detailed Size(L×W×H): 9.1 × 5.9 × 1cm/3.58 × 2.32 × 0.39inch Package Includes: 1 Piece Memory Card Storage Case Note: Memory card is not include