The fisher-price infant-to-toddler rocker starts out as a soothing infant rocker or stationary seat with two bat-at animal friends overhead. Then, as your baby grows, you can remove the toy bar and convert the seat to a toddler rocker (up to 40 lb/18 kg)! with a deep, cozy seat, reclining seat back, calming vibrations, and a colourful (and machine-washable) seat pad, this rocker is the best (baby) seat in the house! Where development comes into play gross motor: the fun animal friends encourage your baby to reach and bat, strengthening those little muscles! Sensory: soft fabrics, bright colours, and fun clacking sounds engage your baby's tactile, visual, and auditory senses. Security & happiness: the deep seat, cozy fabrics, and calming vibrations help your baby feel secure and happy. Use from birth until child weighs 40 lb (18 kg).