The most flexible cleaning sponge ever! The new Elbow Grease® Scrub Mate is soft when wet in Warm water and hard when dry. Use soft to get in hard to reach places, clean glasses, scrub pots and pans and remove stubborn dirt & stains easily. The Scrub Mate stiffens in Cold water and can be used for more stubborn dirt stains and removes tough baked on grease with no hassle. The Elbow Grease® Scrub Mate is ideal for household, kitchen, outdoors and bathroom use and is non scratch.