• wet-erase and are compatible with all of my boards types.
• have reversible tips - simply remove the tip from the marker to switch between a rounded tip or a chiseled, fine tip.
• need to be stored horizontally.
• First Time Use: Place marker tip up vertically and press tip slightly to release pressure. Hold upright and shake well (with cap on!) for 10-20 seconds. Remove cap and pump tip downward slowly until tip fills with ink (repeat if needed).