This kit includes two colored plastics and foam circles for your Tron ramps.
The yellow piece goes over the left ramp/yellow ramp
The blue piece goes over the right ramp/blue ramp
These colored plastics provide protection for the undersides of your ramp cover plastics. The artwork is subject to damage from the pinball otherwise.
The foam circles replace the big ugly squares at the end of Tron's ramps, while providing more dampening.
Here is a complete gallery with many different photos of the kit installed: