Heres the Simple Responce
Z-1 is a polish lock, basically allows the polish to adhere to the paint.
Z-2 is the polish for clear coat cars
Z-5 is the swirl remover
Z-6 is the spray
Z-7 is the car wash
Applicator pads
These products, a bottle of Dawn, and possibly a clay bar are what you need to get the Zaino Shine
Sal\'s instructions