CraftyCroc CC1-100 Chalk Markers With Unique Reversible Tip, Pack of 10, Assorted color. You have in your hands 10 artist quality, 6mm liquid chalk markers in 10 neon colors. Each pen is charged with 8gms of high quality ink and sports a unique reversible nib. It starts with our premium quality nibs (made in Japan) and amazingly bright inks. It's because of this we can make a guarantee unlike any other you've seen for liquid chalk pens.