Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Rathburn Ring Stretcher by Grobet Sale $40.80 | / SKU 48-360 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Rathburn Ring Stretcher Ring is placed on stretcher and the gentle tapping with the mandrel causes ring to expand. Economical and easy to use.