Shows we back the blue with the police flag and the dog paw print shows our love of dogs or can celebrate the K9 role in law enforcement. Combines an American flag with the thin blue line police flag and a dog paw print, or K9 print, to show support and respect for all three. 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.