Jump'In French Mouth Blue Steel Gag bit and copper elementsComposition: Blue Steel. The Blue Steel alloy of this Jump'In bit collection is 54% carbon and 46% manganese. Effect: this bit has an action on the horse's balance. It causes the horse to rebalance and transfer its weight to the hindquarters. The larger the rings are, the stronger the gag action is. This bit combines the gag action and the full cheek bit action, so it combines balance and direction. The tube system between the cannon and the ring