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 chair (up to 40 lb/18 kg). This rocker has a deep, cozy seat, reclining seat back, calming vibrations, and a colourful (and machine-washable) seat pad. 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 reaches 40 lb/18 kg.