Speical Projects need to be sent via air-frieght which costs more. Our typical stock products are sent via shipping container which is inhereintly quite slow. Additionally we send our containers full, and they are booked out a year or more in advance making the logistics of including Special Projects in our container quite ardous and the turn around time too long. For these reasons Special Projects are only sent via air-freight and with that they carry the extra cost as detailed in the question above.