Now, decorating with icing can be as easy as writing with a pen! Fill bag with icing, insert itno the pen and decorate. The pen folds over and applies pressure to the icing - to need to squeeze. Pen gives you precise control. Kit comes with one pen, 3 couplers, 6 icing tips, and 12 bags. Tips included are 3 star and 3 writing tips. Pen is compatible with any standard size icing tips.