Foldable bathtub
Ideal for smaller apartments that don't have their own bathtub since it fits in the shower.
I bought one despite not really being a bather, but then I realized why I wasn't into bathing. It's because bathtubs you lie in kinda suck. Buoyenzy means that your feet and chest will always want to rise above the water
But the foldable is more barrel shaped, like a Japanese bathtub. So your whole body save your head stays submerged. Who would have thought that the Japanese, a people with entire industries around bathing know a thing or two about good tub design