30x4.5mm Large Antique Brass Slide End Tube. Designed for use with Seed Beads and Delicas. A unique way to end your loom, square stitch or brick stitch beadwork with a totally effortless look, it works by gripping the last row of beads inside the tube. Carefully slide your last row of beadwork along the opening of the tube, gently close the open end with your pliers and attach to your clasp. The inner tube is 2.5mm. Sold 2 pieces per pack.