Korsteel French Link Eggbutt Snaffle. The French Link is a double jointed bit that acts on the tongue and the bars of the mouth. The French Link eliminates the nutcracker and palette action of a single jointed bit and instead applies pressure to the horse's tongue. The Eggbutt is ideal for horses who need the support provided by a fixed ring bit. The Korsteel Snaffel is made from stainless steel.