Sublimation cardboard A4 puzzle is a rectangular shaped cardboard puzzle with 120 pieces. This cardboard puzzle is normally cut by a high pressure dye cutter. Sublimation cardboard A4 puzzle is ideal for invitations to parties, weddings and baby showers. Further more it is perfect for educational toys where the educator choose the correct theme. Children will love it and it is strong. Hence the wood puzzle is ideal to sublimate as a recreational and educational item.