Cricut Infusible Ink program allows makers to experience professional-level personalization at home while creating heat transfers that last a lifetime. Pen 0.4 Bright 5pc- For vibrant, permanent, professional transfers. Use with Infusible Ink blanks, sold separately, and EasyPress2 or heat press that reaches 400 degrees. Instructions on the back of packaging and at infusibleink.com. Will not work with incompatible base materials. Water-based, acid-free. Not intended for consumption or use on skin. For adult use only. Colors include: neon pink, neon yellow, neon blue, neon orange, and neon green.