Golf Shop: GOLFSMITH Tungsten Powder 1-2 Pound

"Tungsten powder permits the addition of extra weight in less space at the clubhead end for more efficient swingweight increases. Especially useful on clubs shafted with new ultralight graphites, where extra head weight is necessary to achieve normal swingweights - Weighs 1.5 times as much as lead powder. - Available in half-pound jar."