Easy to use in a small size. Adapted from the USDA Official Egg Air Cell Gauge, this tool allows for easy evaluation of internal egg quality. No more paper cards printed in 2D. This 3D model allows for repeated use even after your first flock of hens is spent.

Print in two colors to make the grade letters pop!

This is also a good tool for training students in the ways of grading eggs for internal quality.

I added a keychain version to make it easier to keep attached to your favorite egg candler.