uxcell 32pcs 6mm Knurled Shaft Green Top Taper Volume Knob Cap Product Name : Potentiometer Knob;Material : Plastic Color : Black, Green;Shaft Hole Dia. : 6mm/ 0.24" Overall Size : 15x 15mm/ 0.6" x 0.6"(D*H) Weight : 40g Package Included : 32 x Potentiometer Knob