Copic is a brand name, there are alcohol based and are made in three styles. It's my understanding that Hobby Lobby carrys one of their particular lines, but I'm not sure which (I don't have one nearby, but several stamping friends of mine have seen them there).. They are wonderful, because they are refillable, blendable, and you can replace the nubs. Two of the three sets are compatible with an Air Brush System, I have the line that is not, and they work wonderfully. I love them! I do know Michaels does not carry them for certain. Several people in the community are very versed on these markers, as they helped me purchase mine, so I'm certain you will get a lot of great feedback!
I hope I was of some help!