Sprenger Dynamic Rs 14mm With Flat RingsSprenger Dynamic RS 14mm with Flat Rings Ergonomically formed, gentle to the horses mouth. Dynamic RS bits stimulate the horse to accept the bit more easily. The ergonomically formed mouthpiece allows a rapid and balanced effect on the tongue. no pressure to the palate Dynamic RS mouthpieces give even pressure on the entire tongue area. gentle to mouth and tongue Supports the contact to the corners of the mouth in an extremely effective way, keeping