The rockaRoo produces a big swinging motion in a compact baby seat, our test subject - 2 month old violet, LOVES it. Violet’s mum and dad were first drawn to the rockaRoo because they live in a flat and wanted something with a comforting motion and at a 3rd of the size of a traditional swing it wouldn’t take up half the living room. 4moms state that it is suitable for use from birth until the child reaches maximum weight limit of 25 pounds, can sit up unassisted or attempts to climb out.