Jump'in French Mouth Eggbutt Gag with roller and high port BitWe love this bit for the quality German Silver in the mouth piece that will help your horse accept the bit. This would be a good bit for professionals to add to their bit toolbox. This bit has an action on the horses balance. It makes the horse rebalance and transfer its weight on the hindquarters. The larger the rings are, the stronger the gag action is. The fixed eggbutt typed rings add a slight lever action. 70 mm large rings 17 mm thick cannons