Heat Shrink Dispenser Stackable Retractable

This is a Heat Shrink dispenser. You can stack them using magnets. If you pull too much out you can retract it. I used a drill to wind them. Every corner got M2 Heat-Set Inserts and M2 screws. Screws 4mm Screws Set Brass inserts M2 Magnets 6x1 mm Heat Shrink Tube kit