They are printed in high resolution onto a SPECIAL EXTRA STICKY vinyl with UV resistant inks to give a really deep colour and sharp print. Where our decals differ from most of the others on offer are that once printed they are then covered in a high gloss laminate to protect them! This gives them a deep gloss covering that's resistant to oil, polish, fuel etc. Finally they are then 'contour cut' to oval shapes, supplied on their backing sheet ready to apply to your sockets. Screenprintdigital is fast becoming the World leaders in reproduction specialist 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.