Eight original black bakelite knobs from an RCA AR88 receiver. All are in very good used condition, the original grub screws are present and turning smoothly. This is a full set of the larger size knobs that are used for Frequency Range, AF Gain, Selectivity, etc. Currently on ebay I also have the two smaller size knobs that are used at the top for Tone and Noise Limiter. I do not have the Tuning knob.