Baby Bouncer, Portable Bouncer Seat for Babies, Infants Bouncy Seat with Wood Grain Base, Natural Vibrations (Grey)Natural Bouncing: The baby bouncer engages and soothes fussy babies with a constant up and down motion. And Its powered by the babys own movements, which helps to develop balance and motor skills. Unique Design: The ergonomic fabric seat and specific recline are designed to fit the baby's body. It provides proper support for their back, head and neck as they grow, and also effectively protects the baby's spine. Excellent Workmanship: The wood grain