The seller is very good. The item was packed well. It works well. I recommend them! Thanks!

The seal's thickness is moderate, but it obstructs airflow in both the air intake and exhaust.

The product's craftsmanship is poor, with poorly finished joints and the glass appears to have been attached using a heat gun. However, it functions acceptably in terms of drawing or inhaling.

The item generally appears acceptable. However, the glass attachment to the metal is poorly done. During use, we discovered an air leak, resulting in more air being inhaled than smoke. A dispute has been initiated, and we are awaiting a resolution.