A fast dissolving, clog-resistant toilet paper, is exactly what is needed when on the road, in an RV. Thus CAMCO found a recipe to not only fulfill those needs, but it is biodegradable, and doesn&';t contain any dyes or perfume. Thus making this paper the safest TP for the environment next to leaves and grass. Fast-dissolving Clog-resistant Biodegradable Septic tank safe Contains no dyes or perfumes 2 ply 4 Pack 500 Sheets