Car wrapping and signmaking professionals usually apply car wrapping films, plotter films or digital print films directly without air bubbles - but if a bubble does form, the YelloPen is quickly at hand!The advantages of this piercing tool are, besides its ergonomic pen shape, the perfect needle guidance of the metal shaft and the reduced risk of injury:The needle tip simply disappears inside the handle at the push of a button - just like a ballpoint pen.