TradeVerifyWe are one of China's biggist IWB manufacture. We have our own R&D group and manufacture facility, so we can supply customers best prices in China, especially for agents and resellers!Our whiteboard's advantages:1.can draw Circle as small as ��MM.2.stable signal in any environment situations.3.special film assist ink pen write.4.easy writing pen, can write even the pen bincline 60 degree(seldom supplier can make it!).