Brightwater Mega Bead Dubbing Hook Storage Tube Brightwater Mega BDH Tubes feature a one inch diameter by eight inch long clear outer tube and contain five one and one half inch tall screw top containers to hold and organize your Beads, Dubbing and Hooks. The inner containers designed for hooks, identified with a "MAG" on the cap, have a magnet in the cap to hold your hooks for easy access.