You operate the pen by pressing the button. As you press it, foam will eject from the nozzle. Just in case waving around the device won’t shape the foam to your liking, a spatula is included to help shape your bubble sculpture more precisely. When your kid is playing with this pen, you will need to supervise them as it is not waterproof. Power it with AAA batteries.
The Awamoko 3D Foam Pen is now available for $39.