Always have the diameter, circumference (in mm) as well as the center line for 30 different size rings at your fingertips. Trace the precise ring outline you require onto your wax blank or into your hand drawing saving time. Made of 0.75mm thick, durable plastic with precision-milled cutouts. Dimensions: 115mmx235mm (4-1/2"x9-1/4")
Note: when tracing, please use a mechanical or very sharp pencil, held vertically for most accurate results.
Details:
Diameter: from 13 to 22.67mm
Circumference: from 40.84 to 71.21mm
US Sizes: 1.8 to 13.4
Japanese Sizes: 1 to 30
