Zebra ClickArt Knock type water base pen, Standard 12 color set ?WYSS22-12CST?

Zebra Clickart Knock-type Water-Based Color Pen ST 12Colors Set (WYSS22-12CST) ?br? The Zebra Click Art features a click-top instead of a cap , Doesn't dry out easily. Clear and vivid Colors.?br? ?br? The ink has been formulated to accept moisture from the air, which keeps it from drying out easily. Last long: Our company testing result = No faded ink at all after 52 weeks of using under condition of 20 °C, 60 % humidity.*Please store the pen properly by retracting the tip inside the barrel when not in use. ?br? ?br? This is a set of 12 standard colors but 36 Color variation available. Easy and fun using multiple color pens just by one click! They are great for homework, planning, drawing, and so on!?br?