Unique, eye-catching design that captures the spirit of the House Of Wind and the joy of reading - perfect for showing off your love for literature! Ideal for book club members, literature enthusiasts, or anyone who loves to get lost in a good book - makes a great conversation starter 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.