This design features the quote "When you can't look on the bright side I will sit with you in the dark." from the book Alice in Wonderland. This makes a great encouragement gift for anyone going through a rough time. 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.