19 mm leather side reins with a rubber ring that ensures the rein gives way when your horse moves. The closures are freely adjustable and fitted with buckle closure. The snap hooks are attached to the bitrings. The side rein is fitted with stainless steel fittings. The side rein serves to improve a horse’s balance vertically or horizontically and is used to teach the horse to decontract and find balance in the lateral bend of its body. The side rein can be used while riding and longeing.