1、His acoustic guitar string is made of steel and copper, with anti‑rust coating, durable and not easy to damage, which saves you the trouble of frequent replacement. 2、Colorful guitar strings can help guitar beginners to remember and practice. 3、The package contains 3 sets of guitar strings, a total of 18 strings, 15 guitar picks, 6 solid copper cones, 1 guitar capo, 1 3‑in‑1 restring tool, 1 tuner, 4 guitar fingers cot, 2 string pillows, 1 piano cloth and 1 guitar pick bag 4、High‑sensitivity guitar tuner can realize accurate vibration detection with 2-color backlight display and dual-axes rotation design. 5、The 3-in-1 Restring Tool includes a string reel, a string trimmer and a bridge pin puller. This is a very practical tool that can help you quickly and easily replace the strings of your guitar. 18 x Guitar String15 x Guitar Pick6 x Pure Copper Solid String Cone1 x Capo1 x 3-In-1 String Changer1 x Piano Cloth4 x Guitar Finger Cot2 x String Pillow1 x Guitar Pick Bag1 x Tuner1 x Button Battery1 x Chinese And English Manual Item Type: Guitar Accessories KitMaterial: Steel + Copper + Plastic + CelluloidTuner Power Supply Type: CR2032 Button Batteryx1 (Delivered With Matching Battery)Battery Capacity: 240mAh