The measurement markings are etched for permanence. Years in the field and they’ll still be easy to read.

The anodized coating is hard, durable, will never peel, and, under normal conditions, will never wear, while its aluminum body gives it an appropriate strength-to-weight ratio. What’s more, the kenometer is specifically contoured to core shapes. Protractor measurements are more accurate as they are closer to the original curve of the core.