The green oil ecosponge 3 cleaning sponge ecosponges soften and expand in water to make a great general bike and frame cleaning sponge the ecosponge is the world39s first fair trade bicycle product and forms part of the eco rider deluxe set green oil ecosponge 3 cleaning sponge features worlds first fairly traded bicycle product ideal for cleaning the bicycle both indoors and outdoors ecosponges soften and expand in water to make a great general bike and frame cleaning sponge h