1、File set has multiple shapes of cutter and it covers full range of treatment including shaping, forming, carving and material removal, making your work easier and labor-saving. 2、3-in-1 tool is a string cutter, a string winder or and a pin puller, whch can help you change strings in a quick and easy way. 3、Screwdriver and wrench set enables you to remove or install screw easily and the wrenches set has 3 different diameters to meet your different needs. 4、Guitar measurement sets includes 2 sets of rulers, and they can be used for measuring the height of string and interval between frets. 5、Portable and lightweight, these repair tools are with a storage bag for easy carrying and storage. And these repair tools are suitable for guitar or other string instruments like bass and ukelele. 1 x Storage Bag 3 x File1 x Dual-Use Screwdriver1 x Stainless Steel Scale1 x Multifunctional String Action Ruler3 x Hex Wrench1 x 3-in-1 String Changing Tool Item Type: Guitar toolkitPacking: Sealed bagFile x 3:Material: MetalBag Size: Approx. 20.5 x 10 x 5cm / 8.1 x 3.9 x 2inWeight: Approx. 300 g / 10.6 ozString Cutter Size: Length: Approx. 9.8mm / 0.4inString Cutter Size 1: Approx. 5mm / 0.2in