Instruct: Classify the given Amazon review into its appropriate rating category
Query: Thin glass, not for professional use. Perhaps fine for the hobbyist.

I purchased the mixing glasses with no designs. I think they may be quite different than the others. Not sturdy at all. When I stir it wiggles around, the base is thin as is the rest of the glass which is never good. I haven't broken them after one weekend service shift but I feel it's a matter of time. Practically they work fine except for the weak and thing base. Size is okay and the pour spout works surprisingly well. They don't look bad but there are higher quality out there for a similar price.