Marker set is designed for use with all Panasonic UB Series Panaboards. Dry-erase markers in this set can be inserted into the Panasonic Electronic Pen Holder to complete your interactive experience. Combined with the Electronic Pen Holder, these dry-erase markers can be used just like a mouse to control all computer applications. Meeting notes and drawings can be saved to the computer, and then printed or emailed for easy distribution. Easy-to-use, colorful electronic pens can help emphasize critical items. Simply write your notes over the projected image. This can help you focus on important words to emphasize the critical issues. Set contains four dry-erase markers (one black, one blue, one red and one green).