This is a great learning tool for beginning and intermediate dobro players. The 17" x 11" instructional guide is nice to hang on the wall wherever you practice for easy reference, instead of flipping through a book. This chart includes 8 basic right hand roll patterns. Above fretboard is the chord locations as the bar is held above the corresponding fret for a standard Open G tuning. This information can be found in books, but rarely on one easy to read chart! Made in the USA.