What is the best way to use Two Hole Brick Beads? You can string these beads parallel to each other due to their parallel stringing holes and add dimension and detail by adding seed beads or crystals in between! These beads are 3mm by 6mm and rectangular, shaped like little bricks. This bead shape is prefect for more contemporary and unique jewelry designs and can be used in stringing, bead embroidery, beadweaving and more! You will just love the effect created when you use these 2 hole brick beads in your next beading design.