What a great idea! Have bead info you need right at your fingertips; when you’re at a bead show or traveling and you see something, you can measure and calculate the size. It helps with how many beads per inch, a wire size converter, and sizing of beads so you can compare. Small enough to fit in your wallet, the Bead Oracle is a must-have for every beader. The same size as a credit card when folded, it’s a helpful tool for all of us. Made in America.