This heavy duty ring mandrel is just the thing for checking ring sizes, and tapping rings back into shape again. The mandrel is just under 14 inches long, with Full Sizes Clearly Marked From Size 4 To 14. Comes In Fabric Covered Paper Box.* Heavy Duty, Weighs 10.9 Ounces * Solid Aluminum, Black Color * Ring Sizes From 4 To 14