Few days ago Wotofo flow sub-ohm tank arrived from Heavengifts. I want to mention that tank came in nice box. In the box: 1 x FLOW SUBTANK 1 x 510 derlin drip tip 1 x extra glass tube 2 x 0.25ohm Coils 1 x User Manual 1 x Wotofo giveaway card Diameter: 24mm From top to bottom with drip tip: 40mm It's made of 316 stainless steel and pyrex glass, build quality is really good. Threads are just perfect, everything goes very smoothly. On the top cap we have awesome design that makes really easy to unscrew to fill the tank (usefull and nice). I like that a lot. The tank holds 4ml e-liquid or 2ml with a silicone plug to satisfy the TPD policy. Absolutely no leaking whatsoever. We got dual adjustable bottom airflow, 12mm x 2mm and airflow is very good. Flow engraved at the bottom side is nice detail. Silver plated 510 pin Both coils are 0.25ohm and suports 35-60w power. The vapor production is really good, nice big clouds. The flavor is as i expected really, really nice. Wicking is very good no dry hits at all. On the coil we have anti spit back mesh so there is no spit back. The tank is compatabile with smok tfv8 baby beast coils which is a big plus. So would i recomend this tank? Absolutely, because i couldn't find any bad thing about it, it seems like everything is just perfect, so far i had no problem. I really like the vapor production only with 35-60w, the flavor is amazing and for my taste it looks beautiful. On heavengifts the price is 29.90$.