These are brand new Dansette Record Player control knobs that have been reproduced from the originals found on many Dansette models including Dansette Major, Major Deluxe, Popular, Junior, Minor, Automix, etc. 
 
These are octangonal in shape. They are solid control knobs with a full back and a correct sized hole to fit the control shaft. You will not find these anywhere else. 
 
Price includes 2 x control knobs.
 
Tips: Always make sure the shaft is clean before applying the control knob. Some control shafts may be on the smaller size so you may need to use tissue paper for a more secure fit.