accmor Ring Sizer Kit Including Metal Ring Mandrel & Ring Sizer Guage, Four Sizes Steel Ring Mandreland & Ring Sizer Finger Sizing Measuring Tool Set- US Size 0-15 for Mother's Day American size: 0-15 with size increments are clearly marked on each ring. Stick measures: USA sizes (1-15) & European sizes (41-76). Sizer measures: USA sizes (0-15). Ring Sizer Mandrel is made of aluminium material. It is lightweight and easy to handle, Non-rolling ring stick design. Fine workmanship and high quality. Durable and does not rust. Perfect for fitting wedding rings, class rings and other wide rings. With this finger gauge you will never have to look for a gauge again.