Techspray 1809-5F Solder Wick is rosin flux-coated Desoldering Braid. It can be used to help de-solder components from circuit boards, remove excess solder from connections, or general cleanup. Since this wick is coated in flux, it works very quickly! Once the wick is heated with a soldering iron, the solder underneath will begin to melt and flow into the strands of the wick. This spool contains 5' of wick and is a great companion to the Solder Sucker.