Cruz Tools GTR-1 Guitar Player toolkit, includes everything you need to precisely set-up your guitar and perform the most common maintenance operations. Eleven hex keys are colour-coded (gold for metric and black for imperial). All truss rod sizes are ball end. Also included is a thickness gauge, ruler, capo, cutters, string winder, 6-in-1 screwdriver and LED flashlight. Tools are professional grade and have a lifetime guarantee.