Smart beads are lined with a silicone compound that grabs on and makes them stay where you put them. New design ideas galore. Use it to keep that single centered bead centred. All kinds of ideas. Try on wire or on chain! Use as a stopper on Pandora style bracelets. Also called slider beads or rubber filled beads.
8mm Hole size is approx. 2.25 - 2.8. By the each.