suyika Glass Tea Cup withLid and Basket Green

I purchased 2 of these mugs one green, one blue. Both mugs are lovely glass, well made, strainer and lids fit well and securely and function as intended. The problem comes when I clean them, both infusers where the infuser meets the top portion are VERY sharp. Sharp enough that I have now cut myself without even feeling it both times I have washed them. I only noticed when I saw that the sink was filling with blood. Initially I thought I was cutting myself on the sharp little bit of metal that protrudes from the inside. I figured I would avoid that, and be fine. But sadly no, it was not that part of the inner lip, it was instead the entire circumference, resulting in, basically a hand circling papercut. I will try washing them in the dishwasher if using them is unavoidable, but for my purposes, they are unusable. 3 stars instead of 2 because despite poor manufacturing and finishing on the infuser, the actual mug and lid are very well made. If that is all you need, it's a VERY nice set.