1、This set contain 45pcs various guitar repair, measurement, polishing and other tools, complete accessories, convenient and practical 2、9 different arc measuring rulers can be used to make necessary measurements and adjustments for acoustic and electric guitars, basses, banjos, mandolins and other stringed instruments 3、This ideal guitar repair tool kit is suitable for changing strings, setting the pitch, and checking the height of the strings 4、The kit is very suitable for cleaning, maintaining and repairing stringed instruments 5、Comes with a portable cloth bag, easy to carry, zipper and pull design is easy to open and carry. No need to worry about missing small parts or messy guitar repair tools