Geography Reference Atlas design. World map of countries atlas with flags! Great for school children learning about the world, great tool for tutors teachers and parents. Gift it to your little child for their birthday or for start of school! Great gift for sons, daughters, nieces and nephews for Christmas too! 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.