THE ONE AND ONLY "NO TOXIC" CARTRIDGE The new H.P. STEEL SHOT HYDROSOLUBLE with steel shot and water-soluble wad is truly unique! Other producers of the market qualify their cartridges as water-soluble, without specifying that dissolution times are very long. The Clever Water Soluble wad, on the other hand, besides being non-toxic, is the only one able to dissolve in only 2 days, thus guaranteeing respect for the environment: with deeds and not only with words. Thanks to its innovative material, Clever Water Soluble dissolves completely on contact with water, leaving no toxic or visual residue.