This Acrylic ruler will be useful for measuring beads and taking precise measurements in all your craft activities.
The diagrams show round bead sizes from 2-20mm. Also printed on the ruler are the approximate number of beads per inch for 2-10mm beads.
On one side, this graduated ruler lets you measure in centimeters (0 to 30cm) and millimeters. On the other, you can measure in inches.