Standard Steel Ring Mandrel: Manufactured with precision, this calibrated, Standard Steel Mandrel offers consistent measurements every time.

This 13” long mandrel is laser etched in quarter sizes from 1-16.  Great on it’s own, it is paired to work with the True Size Ring Sizing Sets – using with the ring sizes eliminates the costly errors associated with the sizing of rings that have occurred with other products on the market. Made in USA.