With the GreenWashBall, now you can wash your clothes without the need of a detergent. The GreenWashBall is an innovative device that can be tossed into your washing machine to clean your laundry in lieu of a detergent. It can be an innovative concept but is not the first one to come out in the market. Products of the same concept and is already in the market include the Miracle II Ball, the Laundry Solution Ball, and the Mystic Wonder Laundry Ball. All of them are good substitute for detergent, however, can they really clean or can they remove the bad odor your dirty laundry has? Just a thought. Anyway, the concept is good and I like it.