1、The 3‑in‑1 string changing tool can be used as a string reel, string cutter and bridge pin puller, which can help you change the strings of your guitar easily and quickly. 2、The set includes 3 sets of guitar strings, the colorful guitar strings are helpful for beginners to remember the strings. 3、The exterior of the guitar picks is glossy, so it will not hurt your hands, and is equipped with a pick box for easy storage. 4、The guitar tuner has a clear LCD digital display, suitable for electric guitars and acoustic guitars. 5、The kit contains various tools for guitar playing, including strings, picks, guitar bridge pin, capo, and tuner. 6 x Yellow Strings6 x Golden Strings6 x Color Strings15 x Guitar Picks1 x Tuner1 x Tuner User Manual1 x Guitar Capo1 x 3-in-1 Restring Tool6 x White Guitar Bridge Pins6 x Black Guitar Bridge Pins4 x Nail Covers2 x Plastic Guitar Nuts1 x Pick Box1 x Thumb Pick4 x Index Finger Picks Item Type: Guitar AccessoriesMaterial: ABS+steel stringTuner Battery: Button battery (not included)Battery Model: CR2032Battery Capacity: 200mAh