Purple Flowers design. Watercolor Effect in Soft Pastel Purple for Iris Flowers. Iris are also known as Flag Flowers. Purple Watercolor Iris or Purple Watercolor Lilies 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.