Mudder Aluminum Ring Mandrel Sizer Finger Sizing Measuring Stick - Size 1-13, with Ring Sizer Gauge Set of 27 Pcs Metal ring stick measure tool with US sizes of 1-15 and European sizes of 41-76 Ring Sizer Mandrel is made of aluminium material. It is lightweight and easy to handle. The 27 Pcs ring sizer set is made of Stainless Steel Durable and does not rust Fine workmanship and high quality