The Little Chubby was custom created for us by a local Queensland brush maker, to suit more obsessive fanatics who wanted to safely detail delicate and expensive wheels. Using a solid plastic construction, we chose a soft synthetic bristle as our testing found the natural bristles would become brittle and damaged over time. This 5cm deep bristle will remain flexible, soft and very effective for years of great detailing. It also uses splayed out and sturdy feathered bristles, to be effective enough for the tougher detailing jobs, yet gentle and long lasting. We also added a chemical resistant neoprene bumper to further reduce the chance of ever harming your wheels.