Pack of 10 Ink and Wonder Blank iPhone 4 Cases, iPhone 4s Cases for Use with Mini 3d Sublimation Vacuum Heat Press Machine Make your own custom iPhone cases with these thin and lightweight hard plastic cases from Ink and Wonder Pack of 10 blank phone cases for iPhone 4 and iPhone 4s You will need a 3d sublimation vacuum heat press machine with phone case molds to transfer an image onto the case "3d" phone cases allow the image to wrap around the sides of the case for a striking visual effect Each case is individually wrapped and protected