What are Magatama Beads? Traditionally, magatama beads were comma-shaped beads made in prehistoric Japan from clay or stone. Now made of glass, magatamas are great for adding texture in kumihimo, fringe, or off-loom beadweaving. They come in two sizes, the 4mm (MA4), and the 4 x 7mm long magatama (LMA). We offer the full line at unbeatable wholesale direct pricing.