1.Smooth and Balanced Strings 3 sets of guitar strings (red, gold, multicoloured; 6pcs/each set); Made of steel with unique rustproof coating, durable and practical. Diameter: E1st .010inch/0.25mm; B2nd .014inch/0.36mm; G3rd .023inch/0.58mm; D4th .030inch/0.76mm; A5th .039inch/0.99mm; E6th .048inch/1.22mm 2. and Sensitive Tuner Turn it on, clip it on, choose corresponding mode, play the strings and adjust until the pointer is centered, the LED display changes from blue to green. It fits to guitar, bass, ukulele, violin and chromatic 3.More Complete String winders help tighten strings and get pins out. Cutter cut off excess strings. Guitar capo not only quickly change between frets, but also can pull out the string nail more easily 4.Utility Gadget Come with 16pcs 0.96 mm thick durable guitar picks and 5pcs thumb picks, just choose your preferred style. Also come with 1pcs pick holder, you can stick it to your guitar and keeps picks close at hand. 4pcs silicone finger protector can protect your fingertips as you switch chords