Henri de Rivel Pro Praised Fancy Stitched Standing Martingale Attachment The Henri de Rivel Pro Raised Fancy Stitched Martingale Attachment is great for handy last-minute changes to tack for the hunter show ring. This attachment easily connects to any breastplate with an open chest ring. Fancy raised white stitching gives a traditional detail to the piece. Imported leather and stainless steel hardware provide structural integrity that riders can depend on. Specifications: Sizing (Product is adjustable, by approximately 4". However, sizing reflects size at the second to the last hole): Pony: 23" Cob: 24.5" Horse: 26.5" Oversize: 28"