Everything you need to change your guitar or bass strings, whether you need to do it quickly in the middle of a set, or you can take the time to give it the professional treatment on the workbench. Includes a bonus System 65 Body & Fingerboard Kit for when you want to give your instrument some TLC in the middle of a string change. This kit includes: J6503 Kit; JDGT121 String Change Kit including Speedwinder; String Cutter; Superlube Gel Pen; Hex Key Multi-Tool; Microfibre Polish Cloth plus JGM65 Set-Up Mat (Black); JDTM01 Magnetic Tray; JSA65 Neck Cradle; J5435 plush Microfibre Cloth; J6503 Body & Fingerboard Kit.