I bought it with the NEO roller but I could not use it. Although it is written that NEO roller description uses middle type and small type, we should use NEO middle type · small type instead of here. I did not understand it although I explored it variously before purchasing because I was short of explanation. I also purchased unnecessary things from the manufacturer's website even hard to understand. It is hard to understand that you can buy it immediately with the NEO roller and it will be incorrect. Please be careful if you are bought