Utimate Cleaning Gum is a sticky synthetic kit that absorbs all the dirt and dust that the car has collected on the track. The putty itself absorbs oil and grease. To clean the car, just press the putty on the dirty part of the cars, and all the dirt and dust particles will stick to the putty. Once you have finished cleaning, you can knead and mix the putty and it is ready for new use. It can be used many times and still retain its properties.