Sprenger Dynamic RS Universal Horse Bit 40626-78 (16mm Thick, 70mm Ring)Sprenger Dynamic RS Universal Horse Bit 40626 78 (16mm Thick, 70mm Ring) ergonomical shape allowing a soft and even distribution of pressure, middle link angled forward by 45 fits exactly between tongue and palate extremely versatile offers 4 different rein options depending on where the reins are attached, varying degrees of lever action intensify the riders aids using a curb strap can limit the poll pressure and additionally acts onto the lower jaw