Firefighter patriotic gift design. Thin Red Line Phone Grip honors firefighters that risk their lives everyday to protect and save ours, including state and federal government firefighters, volunteer firefighters, and private department firefighters. Great gift for a firefighters son, firefighters daughter or firefighters wive or husband 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.