LeMieux Elasticated Martingale AttachmentWe love this LeMieux Elasticated Martingale Attachment, which helps with training and keeping the reins in a consistent and comfortable position! 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