French Mouth Blue Steel 3 ring bit blockedComposition: Effect: Blue Steel. The Blue Steel alloy used in this Jump'In range is made of 54% carbon and 46% manganese. EffectThe action of this bit will invite the horse to lower their head. The Classic 3 ring bit has a more direct lever effect than the German one. The self blocking cannons articulate to a certain extent to keep some liberty while being sure of having a more important control if needed. Blue steel bit oxidizes with air and humidity