BUY IT NOW in my eBay Store: 
GUITARSLIDERULE
The CUBAN TRES CHORDS CHART ADF# & NOTE LOCATOR is a small laminated chart 8.5X11. Easy to use. The chart includes 24 chords with suggested fingering. Be sure to add me to your favorites list!
All purchases will be sent within 24 hours via USPS First Class Mail.
HEAR THE INSTRUMENTS on YOUTUBE:
https://www.youtube.com/playlist?list=FLEbdFOa4jIZwCSPdd-6Xjpg