Uxcell a15032300ux0532 Potentiometer Volume Control Knob Cap with 100 Piece, Knurled Shaft 6 mm Diameter Product Name: Potentiometer Knob; Country of Manufacture: CHINA Brand: DMiotech; Material: Plastic Net Weight: 124g; Package Content: 100(+/-2%) x Potentiometer Knob Main Color: Black, Blue, Red, Yellow, White; Shaft Hole Dia. : 6mm / 0. 24" Overall Size: 17 x 15mm / 0. 67" x 0. 6"(L*D)