What makes these extensions unique are the beads. The beads used for microbead extensions are very small, but perfectly sized to hold both the natural hair and the tip of the hair extension. There are a few different kinds of beads, but they are all tiny and soft enough to be crimped down to hold the hair and the hair extension in place during installation. Small bundles of hair, called strands, are attached to hair near the roots with a small bead, rather than wefts that are more typical of the tape-in method.