Duke Cannon, the Undisputed King of Lather is ushering in a new age of lather with the launch of our Shampoo Puck, a super-concentrated, premium formulated, solid bar of shampoo that smells better and lathers bigger than the rest. Weighing in at 4.5 oz., they're built to outlast multiple bottles of that liquid stuff without leaving any plastic residue behind. Packed full of essential oils, naturally derived fragrances, and big, bold lather.