Guitar Skull Pattern Volume Tone Speed Control Knobs Buttons Hat 3pcs Product Name : Volume Control Knob;Color : Black, White Material : Plastic;Install Diameter : 6mm / 0.23" Total Size : 26mm x 12mm / 1" x 0.47"(Botton Dia * Height) Net Weight : 15g Package Content : 3 Pcs x Volume Control Knob