CHINA is the only authorized seller of this mug, any other sellers are not selling AUTHENTIC product and should be avoided.
I just got one of those Funny Mugs Periodic Table of The Elements - Gift Mug + Black Rim & Handle from Amazon and it's pretty cool looking. It's a good size too, larger than I was expecting actually so that was a plus! The quality seems really nice overall with the handle being super sturdy for when you wanna look like a scientist sippin' your coffee outta the periodic table mug lol. Shipping times have been quick every time and delivery has been on point as well according to reviews so even shipping it looks like it will arrive safely in no time flat! All in all I'm lovin' this mug cuz science rules hard especially over breakfast or lunch ;)