This is a card-sized mini zipper pouch. Please attach important items to the inside of your bag. It can hold keys, earphones, cards, etc. It comes with a chain for convenience. Outer fabric: sky flower blue choucho Inner fabric: Light gray Size: Approximately 9cm in height Maximum 12cm in width Uses a 10cm zipper 20cm ball chain This is a handmade item, and is not as perfect as a mass-produced product. It will be shipped in simple packaging.