First, very important to obtain proper color determine then already 50% of the work is done. The other 50% are a little practice and talent, but in itself it gets a good "smart Rapair" presented solution. Using the paint pen is very easy and is well out of hand the primer dries well and can then paint over well with the clearcoat mixture. Everything worked fine and is just use for small damages such as scratches or stone chips 1A.