In the Dishmatic grip there's a detergent container which opens as much as is needed. The Dishmatic handle is also equipped with a convenient click system so you can replace the sponge after about 4 weeks. You can also switch the head between an ordinary scourer brush or wire brush. Dishmatic prevents contact with the soap, so your hands and nails are spared. The Dishmatic sponges last about 4 weeks and there are three in a refill. The Dishmatic-scratch scourer refill has a non-abrasive surface so it will not leave scratches on delicate surfaces.