So simple yet so genius. This has been the norm in Europe for a long time and now its taking over the US. If only saving water was this simple. These are elongated ceramic toilet. Their sleek wall mounted look; leave your floor space completely free. Toilets give your bathroom modern look. So they should be modern and useful. Toilets are eco friendly! They require in-wall tank. These toilet are hung on a wall with a mounting backet. Tank is not included.