Are you carrying Duct Tape? Why not? The Gear Spool allows you to carry Duct Tape, line, or cord with you at all times. In you car, Gear bag, or on your keys. 
Durable - No moving parts to mess with.
Customizable - The spool comes empty so you can load it with whatever you want.
Carry - Small convenient size so you don't have to carry the whole roll.
Quite - Exclusive rubber bumpers keep the spool quiet on your gear or keys.
Reusable - Once you use up the gear you can just reload the spool again.
The Spool comes empty.