Carry your smartphone and your important cards with this Card Holder Sleeve. Simple to attach on your device, sleeve is equipped with strong adhesive that will not leave any sticky residue when removed. The card slot can carry up to 2 credit/ID cards or a small stack of business cards. The provided push hole offers easy access to your cards. All device features are fully accessible and can be attached on your phone case or the back of your phone.4 styles included