28mm Aluminium Alloy Volume Control Knob 6mm Hole for Guitar Speaker Product Name : Volume Knob;For Potentiometer Shaft Dia. : 6mm/0.24" For Shaft Max.Length : 15mm/0.6";For Potentiometer Base Max.Dia. : 20mm/0.8" Total Size : 28 x 28mm/1.1" x 1.1"(D*H);Color : Silver Tone Material : Aluminium Alloy;Net Weight : 27g Package Content : 1 x Volume Knob