DOUBLE POCKET IS THE BEST Holds up to 5 cards comfortably, plus a hidden cash pocket in the front. Slim Comfort, Strong Elasticity. Built with HD elastic fabric that doesnt lose its elasticity. $UNIQUE FINGER STRAP Youll love our added finger strap. Allows you to hold your phone more securely. It feels amazing$STICKS ON ANY SMOOTH, FLAT-BACK PHONE CASE: This works with any flat-back phone case. Simply stick it on and enjoy It's extremely sticky so it won't peel off easily.$Note: Does NOT stick to SILICONE or TEXTURED cases $Fits any size phone case, such as any iPhone, any Samsung Galaxy, and any Android phone like LG, Oppo, Huawei, or any phone you get the point Just make sure your phone case has a smooth-flat back for the 3M adhesive to stick to.