Master Of Boards Mobile Rolling White Board – 360° Rotating Double-Sided Mobile Dry Erase Board with Portable White Board Stand | 72" x 48"

I can't figure out exactly why this board flops around so much when you write on it, but it does. The metal frame pieces are all very heavy. I've tightened every bolt on this thing. It just simply flops.The center of gravity is high too, so it has the possibility of tipping.I received the product over a week late. I'm still uncertain if that was an Amazon issue, or an issue with the seller.The board has a plethora of very small dents in the writing surface, none of which negate its ability to be written on...its just a shame it wasn't packed and shipped with more care to protect the surface.