12 dry erase, twistable chalk crayons in vibrant, bright colors! Non-toxic, odorless, dust free and butter-smooth! Color Everywhere: Windows & Mirrors (color and wipe clean) Black Paper, White Paper & Cardboard (vibrant colors for any background) Chalkboards & Whiteboards (write, doodle & wipe clean) The Piggy Story’s Dry Erase Collection (colors on smooth, wipes off easily) For best results, pair with our Color on Black, Color on White Tote To Go or our Dry Erase Coloring Books. *Adult supervision is advised. Does not wash off porous surfaces. Recommended for ages 3 and up. Avoid leaving in direct sunlight.