Bubble Pen --- Simply draw & dry it with a blower or heater All pens on this kit contain puffy magic ink that leaves whimsical lines that you can puff up easily by just heating or drying. Easy Peasy to Use --- Draw anything you like in a paper or any surfaces, apply even heat using a blow dryer or microwave for at least 2 minutes and you'll have amazing puffy art projects Puffy 3d Art --- Create scrapbooks like never before Choose from the 6 neon-colored pens and mix them to make magical 3D artworks Clean and Washable --- It can be washed from the skin, most washable clothes and most painted walls. Perfect for art projects, classroom activities and more detailed activities. Fine Masterpieces --- Let your creativity flow freely The pens thin tips allow you to trace lines with finer details so you can put your imagination into paper precisely. Puffy art craft every time.