uxcell 6mm Dia Shaft Potentiometer Volume Control Rotary Knob Cover Cap 25pcs Product Name: Potentiometer Knob Cap; Country of Manufacture: CHINA Material: Plastic,Metal; Net Weight: 102g Package Content: 25 x Potentiometer Knob Cap; Main Color: Black,Silver Tone Shaft Hole Diameter: 6mm/0.24"; Shaft Hole depth:9mm/0.35inch Overall Size: 19 x 11mm/0.74" x 0.43"(Max.D*H)