This is the CruzTOOLS GrooveTech Guitar Tech Kit GTGTR1. I purchased this for guitar maintenance, but I mostly use other maintenance tools, and I've only used this kit once. I don't think I'll be using it in the future, so I'm offering it for sale. It has been stored at home in a non-pet, non-smoking environment, so I think it's in overall good condition. The GrooveTech Guitar & Bass Tech Kit includes all the necessary tools for guitar/bass maintenance. The 11 hex wrenches are color-coded: metric sizes are gold, and inch sizes are black, and their long length provides excellent operability. Also, the truss rod wrench has a ball-end tip. In addition, a feeler gauge, ruler, capo, nippers, string winder, and 6-in-1 screwdriver are included. The GrooveTech Guitar/Bass Tech Kit is a professional-grade item that you can use for a lifetime. "Easy Setup Guide" included.