... 100% top grade silicone material, durable, flexible, odorless, non-toxic, and Environmentally-friendly Item: DS-531Silicone mp3 case for MP3 M1A long established ... with reliable quality products.1) Made from 100% top grade silicone material, durable, flexible, odorless, non-toxic, and Environmentally-friendly quality ... and/or glowing in the dark.9). Weight: 11.9g. Silicone mp3 case / mp3 skin case