This is an accessory designed to keep your cards in a safe place. Simply peel off the plastic film on the back of the card holder and place the sticky side on your phone or case. The card holder is made of vegan-friendly PU material in trendy colors, which makes it easy to match with a mobile phone case in the same shade or contrast. Applied with strong 3M self-adhesive tape, it can be washable and removable. Easy to carry without bulky. It can be customized the colors, material features like sustainable, recycle and bio based or plant based etc. We use high quality environmental vegan leather. It is light, soft to the touch, and has bright colors. It come with a collection for phone back cover, magsafe card wallet, airpods cases, flip wallet phone case etc.