These blank sublimation pens are perfect for sublimation printing using conventional ovens and shrink wrap. We provide shrink wrapping for each pen. It can also be used for other types of craft decoration. as well as The shiny white sublimation coating produces vibrant colors, and the clip can also be used as a phone holder for your added convenience. Material: Plastic parts, sublimation coated metal tube body, shrink wrap. How to use: Separate the pen as only the pen holder can sublimate. The recommended paper size for the transfer image is 10.6 cm long x 3.4 cm wide. Use tape to apply a sublimation transfer on the of the pen. Then use a heat to apply shrink wrap, shrink it tightly to the pen holder, bake in a convection oven at 350/F-375/F for 5-6 minutes, rotating the pen half way. Colour:black+white Material:Aluminum + Plastic Package Contents: 20 x sublimation pen blanks 20 x shrink wrap sleeves NOTE: The suggested settings above may need to be adjusted for results best results. Settings vary by make, model ink, paper, and atmospheric conditions. 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.