Jump'In Mac Genis French mouth Eggbutt bitComposition: German Silver (65% copper, 23% zinc, 12% nickel), a relaxing and solid alloy. Effect: This is a very simple bit. The rings don't slide, so the action is more direct. The French mouth system frees the roof of the mouth from any pressure. Tips: it is a very classic bit that suits many horses that don't have any particular problems. Maintenance advice: rinse the bit after each use to prevent any residue deposit and to avoid your horse