The metal ring is a practical gadget that allows for easy attachment of the phone to cases, covers, and car mounts. Attached with adhesive tape, it provides a strong and stable hold on the device's surface. It achieves the best effectiveness when placed directly next to the holder. When mounted under a case, the holding strength may be weakened, especially if the case is made of thicker materials. The metal ring is available in eight color variants, and the set includes two pieces in the same color.