A 23mm diameter black control knob with spun aluminium skirt and inlay. * Arrow indication * Depth 14mm * Phenolic Resin and Aluminium * Grub screw for 6.35mm (0.25in) diameter spindles https://elecena.pl/product/27199065/sci-rn-117b-arrow-control-knob-23mm 2024-11-09 https://elecena.pl/product/27199065/sci-rn-117b-arrow-control-knob-23mm 2026-05-19 https://elecena.pl/product/27199065/sci-rn-117b-arrow-control-knob-23mm 2026-06-11 https://elecena.pl/product/27199065/sci-rn-117b-arrow-control-knob-23mm 2026-07-04