The Aven Tools 17540 Desoldering Wick is a copper braid that is used in the rework and repair of printed circuit boards, computers, cell phones, or other electronics. The desoldering wick is made from oxygen-free copper, allowing you to easily remove the extra solder from components or pads on circuit boards. Simply press the braid onto the connection with a hot iron and the solder wicks up into the braid.