Dynamic RS bits are characterized by an ergonomically shaping of the mouthpiece. - They lie perfectly in the horse’s mouth resulting in soft and even pressure on the entire tongue area, encouraging the horse to chew. Therefore, Dynamic RS bits stimulate the horse to accept the bit more easily. - In addition the ergonomically formed mouthpiece allows a rapid and balanced effect on the tongue. Furthermore, this bit supports the contact to the corners of the mouth in a very effective way, keeping the horse on the bit. - The gentle joint in the middle which is angled forward by 45° - the characteristic feature of the patented KK-Ultra bits. - Dressage Legal. - 14mm mouthpiece with 55mm rings.