Yes all liquid chalk markers are erasable.
When you write on things with liquid chalk markers you can easily erase the liquid chalk from the surfaces.
To erase the liquid chalk from the surfaces you write on with the liquid chalk you can use a damp washcloth or damp paper towel or use a dry erase eraser.
A little soap and water should also easily clean liquid chalk markers off of any surface that you write on with it and if you happen to get some of the Liquid Chalk Marker on your skin it should easily come off with soap and water as well.