This design features the strophalos which calls forth the power of the goddess Hecate. The uroboros symbolizes her affinity for the serpent, the Laurel Wreath for her Greek heritage, & a six-point leaf to ground oneself with the earth The labyrinth of earth, water, and sky mirror the three parts of Hecate. This is the perfect gift for the green witch while tarot card reading or calling upon the triple moon goddesses 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.