The Beadsmith Digital Caliper - Measures Inner/Outer Diameters In Inches/Millimeters liq-value These tubes are a great

These tubes are a great way to keep bead colors and shapes separate

instead of sliding around

or 5mm closed jump rings as the female half of the clasp

simply unscrew and screw on the one you want to use

The Beadsmith Digital Caliper - Measures Inner/Outer Diameters In Inches/Millimeters liq-value These tubes are a greatThis digital caliper can measure both outer and inner diameters of beads in inches or millimeters. It also features a large LCD display and an automatic shut off feature to save power! Measures up to 4" 100mm with an accuracy of 0. 2mm . 0078" Minimum scale to read is . 01" 0. 1mm Made of extra strong carbon fiber composites Battery Powered (One SR44, 1. 55V included). To change the battery, slide the display panel unit to the bottom of the caliper