A clever tea maker / mug all-in-one. I imported it from China, it's not expensive or anything, it does use Tritan for this steeping chamber thing where it only decants at like a 45° angle. I have some food containers I use for lunch which use the same plastic and they work well, don't get stained. Hope it doesn't have some new kind of cancer or medical issue associated with it, I'll update this post in ~15 years if that's the case.