1、The kit contains various tools for guitar playing, including strings, picks, guitar bridge pin, capo, and tuner. 2、These guitar strings are made of steel and copper materials, and have an anti‑rust coating, which is not easy to damage, and the colorful guitar strings are easy for beginners to remember. 3、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. 4、The high‑sensitivity guitar tuner can accurately perform vibration detection(±0.5 cents), and the dual‑axes rotation design makes the viewing angle more flexible. 5、The kit is complete, with various sizes and specifications, and can be a good replacement for old or damaged guitar accessories. 18 x Guitar String12 x Guitar Pick6 x Black Guitar Bridge Pins6 x White Guitar Bridge Pins1 x Guitar Capo1 x 3-in-1 Restring Tool1 x Tuner1 x Button Battery1 x User Manual Item Type: Guitar Accessories SetMaterial: Steel + copper + plastic + celluloidTuner Power Supply Type: 1 x CR2032 button battery (included)Battery Capacity: 240mAhRestring Tool Size: Approx. 120 x 50 x 30mm / 4.7 x 2 x 1.2inGuitar Bridge Pin Size: Approx. 20 x 8 x 4mm / 0.8 x 0.3 x 0.2inPick Size: Approx. 30 x 2.6mm / 1.2 x 0.1in