Half Tila Beads are a Japanese Miyuki Bead that has two parallel 0.8mm holes. They measure 5.0x2.3x1.9mm.  Like other Miyuki Beads, Half Tilas are high quality beads that are always uniform in shape and size.  There are approximately 25 beads per gram depending on the finish.  Half Tilas are sold in 10 gram packages.