uxcell Aluminum Alloy Potentiometer Knobs Cap 15x16mm 10pcs Silver Tone Product Name : Potentiometer Knob Cap;Material : Aluminum Alloy Color : Silver Tone;Shaft Hole Dia. : 5.5mm / 0.22" Overall Size : 15mm x 16mm / 0.6" x 0.63" (D*H) Weight : 23g Package Included : 10 x Potentiometer Knobs