The Maistic All Purpose Cellulose Sponge is 100% bio-based. It is plastic-free, made from wood-based cellulose. This sponge is reusable and ideal for kitchen surfaces, bathroom, windows, mirrors and yourself. It is great for household cleaning as the sponge does not leave leftover material or marks, such as plastic sponges and clothes would. It leaves the surface dry and absorbs any dust or fluff. The sponge is very appropriate and soft for personal care too.