... Players, Sony Walkmans and anything that uses an ear plug or headphone! Silicone Smartwrap:1. The Smartwrap is the NEW coolest ... 10 assorted colors, one to match your mood, MP3 player or fashion statement! Choose from yellow, pink, red, purple, green, blue ... length as you like. The Smartwrap is made of silicone rubber (elastic polymer) so it's easy on your cords and comfortable ...