Set of four knobs with 'G' with arrow on top. Edge of knob is knurled. Allen screw fixing for import 6mm solid shaft pots. Will not fit 1/4" solid shaft guitar pots. Chrome Plated G Arrow Control Knobs. Styled after the '60s original. The top of the knob has the classic Gretsch arrow design stamped in. Knurling on the upper portion of the edge of the knob. 2mm hex set screw fixing to an import 6mm solid shaft pot. Brand New. Genuine Gretsch 0062700000. UPC 717669293345.