These markers are an amazing idea! I love that these come with refill cartridges, less waster = a happy planet! The way these write is smooth and the colors are bright and intense and not smudgy. The chisel tip offers both thick and thin lines. The best part- these erase so clean! No fluffy weird residue or strong nauseating odors. I will be gifting these to my every school teacher I know! Way to hit the ball out of the park, Pilot! I won’t buy any other brand of dry erase markers.