... as per Italy's technique, high quality. Be suitable for ring enlarging and shrinking. Jewelry Tool Our company. Hongguang Optics extented ... tools as per Italy's high quality.Such as Ring Stretcher, ring measure stick, Ring mandrel, and Iron Anvils. All is high quality ... as per Italy's technique, high quality. Be suitable for ring enlarging and shrinking.Any interest, please kindly sent email to ...