White Skull Guitar Voice Rotary Control Knob 0-10dB Range Scale 3Pcs Product Name : Rotary Knob;Material : Plastic Color : Black, Clear, White;Adjustable Range : 0-10dB Fit for Shaft Hole Dia. : 5.5mm/ 0.22";Knob Inner Dia : 16mm/ 0.63" Overall Size : 25 x 12mm/ 1" x 0.47"(D*H);Weight : 15g Package Included : 3 Pcs x Rotary Knobs