Tibetan Silver Bead Caps, Lead Free and Cadmium Free, Black, about 12mm long, 11.5mm wide, 3mm thick, hole: 3mm. Bead caps can direct the attention focus to specialty accent beads in your jewelry designs. They can also be a great help when mixing small bead spacers with beads. So buy this and Get 40% Off 800pcs Black Tibetan Silver Bead Caps For $4.89 @PandaHall.