Kokuyo Inkga-e Refillable Whiteboard Marker Pen - Meduim Point - Black

Nice little marker. I use this while lecturing. Instead of a wedge tip it has a pointed tip but still writes large enough. It erases cleanly from the white board and does not require a lot of effort. I think it lasts as long as other common brands. Replacing the cartridge is really easy and can be done while lecturing. However the tip can get a little mashed depending on how hard you write. For me, I think I will have to replace the pen part every semester. I really like how easy it is to refill the pen.