A time proven technique for effective soldering.
Under flame, the charcoal glows and reflects heat back in to work, making the flame more efficient. Selected, close-grained, knot-free wood is chemically prepared with a special process for soldering.
Easily punctured to hold work. (Not heat rated)
Please ensure block is fully extinguished when done.
Measurements: 3.5" x 2.25" x 1.5" (89 x 57 x 38mm)