These ballpoint pens are blank pens for dye sublimation and DIY printing. Select the image you want on your computer, then use the shrink film (included) and convection oven to pattern the blank pens and personalize their look. Our dye-sublimation blank pens have a dye-sublimation coating on the surface, which can print patterns or text on the pen barrel, leaving almost no blemishes. PLEASE NOTE: If your pen touches metal during baking, rotate the pen half way so the shrink wrap doesn't melt. Writes smoothly and is suitable for all kinds of books, cards, documents, paper, planners and more. You can also use them , school and office. Measuring 5.51 x 0.59 inches (L x D), these dye sublimation pens are and just the right size for easy and comfortable holding and convenient storage. Color: White Material: plastic Package Contents: 12 pieces of sublimation pens 12 sheets of heat shrinkable films Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.