Description: RFID BLOCKING: Credit Card Holder main card slots are made of material that prevents RFID radios from scanning your debit/credit cards. STURDY MATERIAL: This Small Card Case is made of aluminum alloy and ABS high quality material, hard card case, which prevents your cards from bending and cracking. ENOUGH CAPACITY: This Business Card Case holds about 8 card and 10 cash. The storage layers is designed to accommodate coins, money, bills, ID cards, cards, paper towels, etc. GOOD SEALING: Metal Card case sealed design, not afraid of water, can be scrubbed with water, easy to clean. The business card holder is light and compact, easy to carry. EXTERNAL CARD SLOT, EASY TO USE: the external strap design makes it more convenient to take and put commonly used cards and cash, and can expand the capacity. Specification: Material: Aluminum Alloy and ABS Size Chart: 11cmx7.1cmx2.2cm/4.33inchx2.80inchx0.87inch Package Includes: 1 Card Case Note: Please allow slightly errors due to manual measurement and different monitors.