Jump'in French Mouth Eggbutt With Fine RollersWe enjoy that this bit is great for horses that have been worked with bits that were too strong for them. It can help them gain confidence in bits again. This is a very simple bit. The rings don't slide so the action is more direct. The rollers on the cannons make the horse constantly work on the bit and not catch it or be fixed on it. Eggbutt bit 70 mm rings Standard 17 mm thick cannons Bit with fine rollers Cannons made of Stainless Steel and German