Aquila's Charango sets are made using innovative materials, discovered and perfected after a long period of research and thorough testing, giving rise to a new synthetic product of high technology. **PLEASE NOTE** Just like gut, Aquila's Nylgut® can suffer if it makes contact with sharp edges. Before stringing the instrument, make sure the nut and bridge are free from sharp edges and the nut grooves not too deep and perfectly smooth. You can get rid of sharp edges with very fine grit sandpaper (600, for example) or the finest steel wool (000). Aquila also recommends breaking their strings to achieve faster tuning stability. Aquila says "The best sound quality develops when the strings have completely set, which may ordinarily take some time. To achieve a stable intonation in just a few minutes you can repeatedly pinch each string at mid-length with your fingers, pull it decidedly sideways and tune it up again. Stop when the string does not pull out of tune anymore." NB - This set has coloured ends to depict which string is which. These colours are as follows; 1st String - Red 2nd String - Blue 3rd String - Green 4th String - White 5th String - Yellow
