uxcell 5mm Dia Shaft Round Potentiometer Rotary Knob 17mm x 15mm 6Pcs Black Product Name: Potentiometer Knob; Country of Manufacture: CHINA Material: Metal; Net Weight: 15g Package Content: 6 x Potentiometer Knob; Main Color: Black Shaft Hole Dia.: 5mm/0.2" Overall Size: 17 x 15mm/0.67" x 0.59"(H*D)