*There are two things in the box. The note, which reads "Happy April first- Tim" And a Klein bottle, which is obviously impossible. For those who are unaware, a Klien bottle is a 3D moebius strip, and technically, shouldn't be able to exsist in real space, as the inside and the outside are both the same plane of glass, and so the contortions that it has to make are... weird. It hurts to look at for too long. but if you put something in it, thats never coming out.*