Finer than normal crystals—very messy
Its performance is fine, but this product is very messy. The grains are much finer than regular Tigerino crystals—more like sand. My cat kicks it absolutely everywhere and the grains stick to his feet, so they are tracked all over the house. Because the product is so heavily dyed, this can cause staining if the grains get wet. My bad for not reading the description properly, I suppose!