The Woolie Bully line of brushes are the largest and longest Wheel Woolies brushes they've made to date. With extra-long 12” microfiber brush parts and 6” and 12” long flexible non-scratching polypro rod handles, Woolie Bullies was developed for cleaning the largest SUV’s, RV recreational vehicles and pickup trucks. With extra-long handles and compressible brush parts, a Woolie Bully® can reach deep into areas other brushes cannot reach. With soft absorbent fused microfiber material Wheel Woolies®deliver more detergent and remove more dirt than any other car care or wheel cleaning brush. WheelWoolies require frequent rinsing to remove abrasive dirt while in use and a final rinse before storing.