So here is the information from their web site (below), but i just love the look of it, it's Danish by design.
The Leander Cradle is suspended to allow free movement, rather than being in a fixed position on the floor. The four suspension straps are attached at a single point, either the ceiling hook included with the cradle, or to a special stand available as an optional accessory. The benefit of suspending it in this manner is that the cradle doesn't rock in one direction only, but allows soft rhythmical movements familiar to the baby from conception. It also makes it easier to start the cradle moving. Experiencing its ability to control the movement of the cradle contributes greatly to the baby developing awareness of its own body.