Light Blue Opal smooth round Druk bead 4 mm, strung on a 7.5 inch strand containing approximately 50 beads. Druk beads are pressed glass round beads, made in the Czech Republic. They are typically round and come in many colors and finishes as well as sizes ranging from 3 – 14mm. They are still hand made in small batches so they have a handcrafted artisan look. Hole size is approximately .8mm.