Hi there I'm Zack Brody, director of marketing for wizard wall, and this is the first of a video series of tips and tricks to help you get the most out of wizard wall. So the first is something that you may have heard, you can do in whiteboards, but it also works on wizard wall surface. Now as opposed to whiteboards, where you never want to use permanent marker, on wizard wall we actually encourage you because you can roll it up take it with you. It comes in a big 25 - 40 foot roll and it's recyclable so you have plenty to spare. Now that said, sometimes you want to use a dry erase and you accidentally use a permanent. You're going along and everything's going great! but you made a mistake and realized oh no it's a permanent marker. What do you do? I'll tell you what you do you, go over the permanent marker with a dry erase marker and believe it or not the two chemicals neutralize each other and then when you go over it vigorously with an eraser it's gone! There you have folks, more tips to come!