I highly recommend these pencils. They very effectively allow you to transfer thoughts to paper thereby creating a written record of the thoughts. The lead is dispensed with a simple click of a button mounted right on the top of the instrument! An eraser is included so you can remove mistakes from the paper making it as if they never occurred. These pencils have the added advantage of working equally well for both right-handed and left-handed writers.
I found that the lead slips down when I first start to use these. Also the erasers aren't good - need to use a separate Staples pink eraser (which is excellant!) to erase.