The Spider Pen Pro will also you to suspend small objects such as a bill or a ring in mid-air while being 10 feet away. It is a real writing pen, easy to use, looks great, and comes with a video teaching you everything you need to know! One AAA battery will last you a year. It is the most reliable motorized thread reel.
It creates returning customers as they will need more refills for their pen. It sells itself!