Ho, ho, ho!
Here's the website
http://www.smartbells.com/
They have videos so you can view how they are used. Found someone who referred me to a thread on videofitness.com; the response seemed to be mixed. Some people loved it, others thought it was too expensive and could be replaced in the exercises by other equipment. Not sure whether it's worth the purchase or not. Thought it might be helpful for beginners who feel uncomfortable with dumbbells or have arthritic joints...since it has a two hand hold.