PENGUIN ARTS CHALK PENS & CHALK MARKERS HAVE BEEN DEVELOPED AND MADE FOR BOTH CHILDREN AND ADULTS TO USE AND ENJOY! THE ERASABLE CHALK MARKER PENS WORK JUST LIKE DRY ERASE MARKERS AND WET ERASE MARKERS BUT ARE MUCH MORE OPAQUE IN COLOR Use on: Kids School projects and homework, Glass, Windows, Plastics, Base Balls, Kitchen units even use them on yourself!! Great for Halloween, 4th July, Thanks Giving, Birthday, Christmas decorations or any other celebration etc!! When your finished just wash away with a damp cloth or baby wipe etc! Use on: Whiteboards, NON - POROUS Chalkboards, Menu Boards, Bistro Boards, Vinyls, Ceramics, Car Windows, any non porous surface etc! ALWAYS test on a small area first to check that the surface is NON-POROUS and it wipes away OK Leave messages for friends and family almost anywhere - Car windscreens, front doors, kitchen cabinets, the list is endless!! Endless possibilities and tons of fun - Your Penguin Arts Liquid Chalk Markers let your creativity come alive! Choose a liquid marker in your favorite color. Shake well, And let your creativity soar! You'll love these liquid chalk markers as a gift for the creative youngsters in your family; as a fun and reliable education tool (is anything worse than losing the attention of your classroom because all of your liquid pens have dried out?); as an easy way to attract customers to your restaurant, bistro, store or business; and so much more! BUY TODAY COMPLETELY RISK FREE THANKS TO OUR 90 DAY SATISFACTION GUARANTEE!