New formulation erases easily and cleanly. Improved color vibrancy and long-lasting writing. Marks on whiteboard, glass and other nonporous surfaces. Fine point to write in small areas with detail - great for laminated planners and calendars. Sturdy pocket clip for portability. Cap can be left off for 24 hours without dry-out. Safe to use at home or school. Low odor, non-toxic. Conforms to ASTM D4236.