Raw sheets of PU Sublimation leather to make your own finished creations. PU Sublimation leather sheets are approximately 19"x12" (30cm x 50cm) and about 1mm thick to add your own designs to your sewing creations. ***PRESSING INSTRUCTIONS*** Press the sublimation area with the transfer paper face down on top of the leather sheet. Press with medium-heavy pressure at 400 degrees for 60 second. **Time/temp recommendations are just a starting point. Please test your own equipment for the correct time and temp for you. Then use the sublimated leather to make your own creations!