Sweet Copper link promotes salivation for better acceptance. Balanced pressure on tongue and bars with no palate pressure. Two different types of pressure available in one bit tailors the rein aid to the horse. The angular edge provides stronger effect when buckled toward the tongue. If the + sign is on the near side, the angular edge is employed. If the + sign is not visible, the softer round edge is in use. Thickness: 16mm/Ring size: 70mm Association Approvals: Dressage: FEI, USEF, USDF, USEA Eventing: FEI, USEF, USEA Jumping: FEI, USEF, USEA These approvals are the best information we have at this time, but correctness standards are ever evolving. Competitors are reminded that they are responsible for the correctness of their tack. If a rider is unsure of the correctness of any tack, it is the rider’s responsibility to confirm their equipment with the steward or technical delegate.