Our Aqua HO2 polyester sponge is intended for home, auto and marine washing. Its large size and durability make it a great choice for larger general cleaning projects. This large polyester sponge has a honeycomb structure that make it extremely absorbent and allows it to rinse completely. The Aqua HO2 is durable, remains soft and pliable even when dry, is resistant to organic solvents and can be sterilized by boiling. Because it can be repeatedly reused, it is a very economical polyester sponge.