This project pack contains: 2.5 meters (over 8 ft) of high-brightness, long-life EL wire in Red, Pocket EL inverter runs on 2 AA Alkaline or rechargeable batteries (not included), 2 inches of heat shink, both 1/8" and 1/4", 2 inches of copper tape, 2 inches of foam tape.
The product kit comes with: A fully tested and assembled LED backpack. Ultra-bright 4-digit 1.2" tall red seven-segment display. 5-pin header. A bit of soldering is required to attach the matrix onto the backpack but its very easy to do and only takes about 5 minutes.