Get the full range of foil design possibilities with the Silhouette Heat Pen Set, including the Super-Fine (0.5mm), Fine (1.0mm), and Wide (2.5mm) tips. From intricate details to bold strokes and filled designs, this set gives you every option for adding professional-quality foil embellishments. Each pen permanently transfers foil to select materials like cardstock and faux leather using heat, not pressure, for a cleaner, brighter, and more durable finish. The Heat Pens are cordless and plug directly into your machine's carriage, allowing for quick, hassle-free setup without external power or adapters.