I love when a product is functional and eco-friendly. The VBoard Master 3 pk Assorted Dry Erase Markers are refillable! Now I will say they are a bit more durable than your usual dry erase marker for longevity, so if you have small children that are tad heavy handed they will take a bit more pressure before caving in, but monitor their use can certainly prevent a mishap and extend the life of the marker. I do like the ease of refilling and the low fuss coupled with the low mess makes this a win-win.