A subtle amber hue and a nice patina make this set of 4 barrel knobs a unique and much sought-after part. Fine knurled. Please Note: All guitars manufactured in Japan, China, Indonesia and Mexico use metric pots (6mm), and have metric sized holes drilled for the pots. All pots sold by RS Guitarworks use standard pots and hole diameters (3/8"). Therefore, holes in the guitar, plates and/or pickguards will need to be enlarged to 3/8" to fit properly. Also, metric knobs will not fit the RS pot shafts; most popular knobs are available on the store in new and aged versions. Gibson is a registered trademark.