SEALED 18: 1 GEAR TUNING MACHINE: In the higher gears, the guitalele string can be tuned more precise, keep ukulele stay in tune better than 15:1 gear tuning pegs, ensures you would not be troubled by 'out of tune' so fast. Our gear made of pure copper will be harder, less rusting. | ADJUSTABLE ACTION: Each guitalele come with 1 original Allen wrench which can help you adjust the action freely based on your habit. Turn Clockwise loosen strings and turn anticlockwise tighten strings. | WELL FINISHED FRETBOARD: Come with Smooth Walnut fretboards on every side detail, you can roll over the frets and do not need to worry be scratched. The fret wires ends can be a very troubling point of contact with inexpensive instruments. These fret wires have been manicured to a level that there is no sensation. | A GREAT GIFT FOR MUSIC LOVER - Whether you’re looking for a birthday, Valentine's Day, Christmas or graduation gifts, send this guitalele to anyone that likes playing guitar or someone that just loves music. This could be an awesome gift for adults, kids who are just getting started with guitalele. | Kmise responsible for every item we sold and do our best to offer the best solution if your product has any problem.