Read the blurb on the website mate, there is demo videos on there too! basically it's a 3 step fix, the blob the paint on and let it dry, remove exess paint with the blending solution and then polish it up!
it's the only chip repair kit i have come across taht lets you blend the paint in, all others will leave a visible blob of paint on the surface of your car unless your skilled and brave enoug to wet sand it!
it's not perfect, no touch up ever is and it taks some practice to get spot on but its the best thing i have come across!