T-bars, T-bars for Cord

You can thread a cord through the two openings of the T-bar for cords and thus fasten the cord with the small bar in any position to a fabric. So, the T-bar can be used much like a button. You can run it through a buttonhole and again simply unthread it. Or, which is the special advantage, lead it through a fixed ring made of plastic or metal and thus create a flexible connection that can be easily released again. This connection is often and gladly used in tents where the inner tent is hooked into the outer tent.