Zing Revolution MS-JC20133 Johnny Cash - Cash Cell Phone Cover Skin For iPhone 4/4S Zing Revolution Skins protect the back of your favorite devices with a durable anti-scratch, anti-uv coating. Avery adhesive technology prevents bubbles and allows easy application and clean removal. Ultra-low profile means flawless integration with almost any accessory. For iPhone 4/4S - for extra protection, and to protect your Zing skin, use with the Zing Revolution Clear CaseMS-CLCS10133