For when the rubber on the gear stick handle degrades and breaks up, causing the original buttons to fall out. This was made for a JD 6930, but looks like they should fit other models including 6M and 6R series with the autoquad transmission.

Dissemble the handle. Trim away any remaining black rubber from inside the oval holes and insert replacement button from the inside. Then reassemble the handle.

Designed to use an opaque filament for the main body of the buttons and a transparent filament for the hare and tortoise symbols, so the lights still illuminate them.