They are printed onto high grade white vehicle vinyl using UV resistant, waterproof inks. We've even used METALLIC silver on the door plates, number plates and center stripe! This set is ideal for cars that are actually raced rather than 'shelf queens' too as they are over laminated with a protective gloss finish. Each individual sticker has it's own contour cut line so you won't have to worry about finding the kitchen scissors for these, just peel off the backing sheet and stick on. Screenprintdigital is fast becoming the World leaders in model decals, we are a team of top graphic designers and printers who have been in business together for over 30 years. All design and printing is done 'in house' at our premises in the UK by enthusiasts for enthusiasts! ..we are friendly and don't bite