Feature: Coated with ultra high purity water white rosin flux. Excellent thermal transfer for faster, safer desoldering using lower temperature irons To use: Place the solder wick over the area to be desoldered, apply your hot soldering iron and the solder will be soaked up into the braid, repeat with a fresh area of braid until the joint is free from excess solder. Please note that the length of the wick is 75cm(29.53") , not 1.5m as printed on the item.