This dog design makes a great idea for the German Shepherd mom, puppy lover, dog mom, and an animal lover. Also a great idea as a Christmas present for anyone who likes cute hearts. Adhesive backing attaches the PopGrip to your case or device. Will not stick to silicone, leather, waterproof, or highly textured cases. Works best with smooth, hard, plastic cases. Not compatible with wireless charging Printed top is swappable with other compatible PopGrip models. Just press flat, turn 90 degrees until you hear a click and remove to swap.