TOHO 3 Cut Beads add that little bit of spark to designs because of the 3 flat surfaces on a round bead. TOHO seed beads are perfect for weaving and stringing. In the beading community Toho's uniformity is unparalleled. Toho seed beads have a large hole to accommodate passing back and forth through the bead for all beading mediums. There are aprx. 8 to 11 grams per tube. This weight varies due to bead properties. The tubes are 2.5 inches long.