The metal-like phone card holder will keep your important cards on you at all times. This card holder is made of polyurethane material and it attaches onto the back of your cellphone using a strong adhesive, assuring you that it will stay stuck no matter what. You can carry your IDs, credit cards, banknotes, debit cards, or even hotel keys in this card holder. The available colors of this card holder are the following: gold, copper, or silver.