Black Arm sleeve is printed with the Glimmer Gear logo in red and white with Waterproof, Flexible, Three-Step flash and non-flash LED strip (both arms come with red lights). This LED strip has a battery box with an ON/OFF switch powered by (2) test 3V button batteries (CR2032) connected on one end of the strip. The LED strip is removable.  

~Sold as 1 LED Glimmer Gear Sleeve + 1 Basic Black Compression Sleeve~

Glimmer Gear LED Arm Sleeves provide visibility, safety and compression.  Made with breathable Coolmax Polyester, which draws moisture away from the skin's surface and disperses it so it can evaporate rapidly while being light weight, durable, and stretchable.