RB Cleaning putty
As seen in our report from the Toy Fair, RB have launched its own line of cleaning putty. Similar to others on the market, it will allow you to easily remove oil residue and dust from tires that may stay stuck to your engine and other parts of the car. Flexible and efficient, the cleaning putty is delivered in a handy box which will preserve all the properties of the gum.
Source: RB [rbproducts.com]