The RR Customs Bad Boys Magic Sponge is a clever, chemical-free solution for lifting stubborn, ground-in dirt. Perfect for plastic trim strips, rims, door shuts and other tricky spots, it needs nothing more than a little water to get to work — no extra cleaning products required.The special foam structure acts like an ultra fine-grained sandpaper, gently abrading away grime, scuffs and marks that ordinary sponges leave behind. Simply moisten the sponge with water, wipe over the affected area with light pressure, and watch the dirt disappear.Because it works mechanically rather than chemically, it is ideal for quick spot-cleaning and detailing touch-ups. Always test on an inconspicuous area first, as the abrasive action is not suited to delicate painted or glossy surfaces. Rinse the sponge after use and allow it to dry. A handy, low-cost addition to any detailing kit.