Dynamic RS Multi Ring 16 mm double jointed – Sensogan Alta Hills Tack Equine Boutique Sale! from $ 224.00 Qty. Add to Cart Qty available: 1 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Dynamic RS Multi Ring 16 mm double jointed – Sensogan, size 135 mm (5 1/4″)