I purchased these pens that will change my life. They are comparable to the Frixtion (Friction) pens that everyone is ranting and raving over. These pens use the same concept. I will be doing a review of these pens on my youtube channel soon. Please, do subscribe and follow me on my blog. More great things are coming. Head on over to Amazon to purchase your set of pens today. You will not regret it. You will most likely be thanking me instead. Please, check out my youtube channel. You may find a video that you like or a video that came in handy. www.youtube.com/tjsg2011