This Czech glass 10 x 3mm luster iris tanzanite bead is sold in a 2.5-inch tube.
About the Brand: The CzechMates Beading System was created by Nichole Starman to provide beaders with innovative beads that work together perfectly. Known as "the building blocks of modern beading," each Czech glass bead in the CzechMates system features uniform hole-spacing, for wonderfully structured 3D beaded designs.