ASA E6B METAL FLIGHT COMPUTER
You don't need to buy CX-2 or CX-3 which costs C$100+TAX E6B is really useful specially in the air. I do NOT recommend you to buy a paper one. Because you'll always rotate (might get ripped) and draw something on it.
Market value is roughly $40+ I'm asking just $25. If you have any questions, please do not hesitate to ask me.
Fly Safe! : )