Kleenslate replacement markers are bullet-tip, low odor, dry erase markers with a removable eraser. When the marker goes dry, simply remove the eraser and put it on nearly any other marker of the same size. Details:Black Pack of 24 markers Bullet-tip, low odor, dry erase markers with erasers Color matched, gray felt-backed attachable eraser Patented, felt-capped erasers fit more than 75% of currently available markers