Speed Knob, Volume Control Knob, Knob, Plastic Guitar Accessories Guitar Supplies for Musical Instrument Music Lover Specification: Features: Made of tough plastic, sturdy and solid, durable to use. With a small wrench, easy to install and use. Imitating the appearance of , special and attractive, adding the fun of playing guitar. Decorate the electric guitar and replace the volume adjusting knob. 3pcs in a pack to meet your use needs. Specification: Condition: 100% Material: Plastic Color: Black + White Quantity: 3Pcs Size: Approx. 1.6 x 1.6cm / 0.6 x 0.6in Inner Diameter: Approx. 6mm / 0.24in Weight: Approx. 15g Packing List: 3 x Knobs 1 x Wrench