Ok, its a Chinese ripoff of an AtmosRx ( which itself is a ripoff of Atmos...lol ) It is about the same size as the Ego vape pen. This model is made to use dry herb. foe what it is, it seems very well made actually. I tested it out last night and I must say, this being the first vaporizer I have used, it works great! For $22 is seems to be good enough until I can afford a better one, but as far as I am concerned, this is SO much better than a pipe! Now, I dunno if it was the bud I chose, if just a fact of vaping, but damn, ONE hit and I was good! @ hits and I was flat on the sofa till bed time lol! The best thing was, no restless leg after going to bed! THAT was amazing! I get terrible leg cramps often. and I always know when they are coming because the "restless leg" thing gets very noticeable. Ok now, I'm a light weight lol, only starting using cannabis again after many many years in Nov. so it doesn't take much. that and until my grow is done, I can't afford to use daily. I'll tell ya this, I can'y wait to pack some of that White Widow in this baby.... MMMMMMMMMM!