I need a good marker to black out the personal info on my junk mails before throwing them out. The marker's wide tip makes it very easy to glide across the line and the ink is dark enough even on the glossy papers. (I only use black marker for this purpose.) My only complaint is the smell! It is very strong, although it does dissipate rather quickly. The package contains four markers - two blacks, one blue, and one red. It should last for a while.