Sprenger Dynamic RS Eggbut bit with D-shaped rings Horse Bit 40408-78 (16mm Thick, 65mm Ring,)Sprenger Dynamic RS Eggbut bit with D shaped rings Horse Bit 40408 78 (16mm Thick, 65mm Ring,) ergonomical shape allowing a soft and even distribution of pressure, joint angled forward by 45 fits anatomically correct between tongue and palate, allows effective rein aids designed to encourage the horse to confidently step forward to the bit ideal for sensitive horses or horses with a fleshy tongue allows direct pressure transmission on the tongue and