CHALKQUID - Premium Liquid Chalk Markers - 10 Pack Mega Markers -Unique Reversible 6mm Tip 10 BRIGHT COLORS MEGA MARKERS --&gt; 8gms of ink - Pink, Green, Black, Blue, Yellow, Red, Orange, Purple, White, Brown PREMIUM QUALITY --&gt; Unique reversable tip chisel and bullet. The 6mm chisel tips offer smooth and consistent writing for kids and adults. VERY SIMPLE TO USE AND EASY ERASE --&gt; The ink wipes clean with a damp cloth making it perfect for kids and beginners. Baby wipes works as well on glass and plastic. SAFETY -- Non-toxic, Oderless, Water base, quick dry. Pens meet European and American safety standards and are also EN71-3 certified. FOR USE ON NON-POROUS SURFACES -- Perfect for white boards, glass, windows, plastic & labels. Use it for menu boards, window decorations, birthday parties, holiday decorations for Christmas, 4th of July, Halloween, Birthdays. Chalkquid works excellent on these!