LIQUID CHALK MARKERS PACK - 10 6mm - Each Premium Quality Pen With Unique Reversible Fine Tip / Broad Tip & How To Draw Book DO NOT USE ON POUROUS SURFACES (this includes some chalk boards) 10 Liquid Chalk Markers set in beautiful vibrant neon colors - Including White, Red, Blue, Green, Purple, Orange, Pink, Yellow - make arts and crafts, sales board, art project, or design pop! Great for festive holidays and any other occasion - Decorate for Christmas, Thanksgiving, Easter, 4th of July, Birthday Parties, and Weddings! MANUFACTURER MONEY BACK GUARANTEE - We strive to make the Best Products Possible. If you're unhappy with our product for any reason please contact the manufacturer and we'd be more than happy to replace your unit or offer you a full refund! WORKS ON ALMOST ALL NON-POUROUS SURFACES - Blackboards, Chalkboards, Restaurant Menu Boards, Glass, Windows, Whiteboards, Chalk Labels, Message Boards, Plastic, and Most Metal Surfaces.