Luminlay knobs IB series/-5+5/for 6.35mm(1/4 inch) shaft
IB series is with -5+5 numbers, 19 mm in diameter, and for 6.35 mm (1/4 inch) shaft. General metal knobs have beautiful looks but they are difficult to control precisely. Luminlay knobs improved this weak point by adding numbers and glowing. These help your play to make more accurate. High quality machining and plating, handcraft process. We preserved Black(BK), Cosmo Black(CK), Chrome(C), Nickel(N), Gold(G) in plating color, with blue and green glowing color.