Allparts MK-3338-000 Black and Chrome Concentric Knob

(1) chrome/black finish stacked knob for CTS dual concentric pot(large style '62 Jazz Bass). Top section measures 3/4" x 1/2" and fits 3/16"(4.75mm) shaft. Bottom section measures 1" x 13/32" and fits 17/64"(6.75mm) shaft. Each section attaches with a set screw.