1、The three-in-one tool can cut the strings, roll the buttons, and pick up the nails. 2、The button with the metal knob is more textured, smooth and shiny, which has long service life. 3、With wear-resistant and durable, anti-corrosion, rust-proof and dust-proof, the guitar buttons can quickly tune, accurately tune and no run sound. 4、The strings have a bright tone and strong penetrating power with smooth and comfortable, which is the first choice of guitar lovers and DIY lovers. 5、The colorful strings produce clear sound, which is very suitable for classical guitars. 1 x 3-in-1 Guitar Tool Set2 x Guitar Button8 x Guitar Screw6 x Guitar String Item Type: 3-in-1 Guitar Tool SetMaterial: Plastic+metal+nylon3-in-1 Tool Product Size: Approx. 12 x 5 x 2.2cm / 4.7 x 2 x 0.9in