Running martingale attachment with elasticated cord to soften the action on the reins. Featuring rein snap hooks for ease of use, this handy training aid is compatible with all LeMieux breastplates and martingales.Precise fitting is made possible by a buckle attachment for adjustment, while a leather bridge keeps the straps close together, helping in the event of a fall to prevent the reins from coming over the head, and also keeping the action on the reins consistent.FEI competition compliant.