... , odorless, non-toxic, and Environmentally-friendly Item: DS-423Silicone mp3 case for iPod Nano4A long established professional Silica Gel products manufacturer ... Opening for screen and all controls.4). Easily access to the headphone hole, screen, button etc.5). Any colors are available ... . 7). Optional choice: with rose perfume and/or glowing in the dark. Silicone MP3 case for IPod Nano 4 / mp3 skin