Chalk pens are a great alternative to dry erase pens because they never stain, they wipe off easily with a towel yet they don't accidentally wipe off if your hand brushes over it like a dry erase pen would. Stay extra organized by using a different color for each child, task or chore. Perfect for my dry-erase chalkboard calendars or acrylic calendars! These liquid chalk markers can be used on non-porous surfaces. A set includes 8 bright colors to make your Circle & Square dry-erase calendar pop or select the 16 pack to get both neon and earth tones! You also have the option of 2 different writing styles in one pen - choose chisel or round whenever you'd like! Wipe clean with a soft cloth or dry-erase cleaner. *they are permanent if used on porous surfaces, so do not use on a real chalk board* Product Details - 6mm Fine tip - Reversible tip : Chisel or round! - 8 fluorescent markers per pack - Neon Colors: Red, Orange, Yellow, Green, Blue, Purple, Pink & White (white will we swapped for a black pen if you have ordered an acrylic or whiteboard calendar)