Smart Stages learning content changes with baby‚Äôs age and stage. This grow-with-me center takes baby from laying and playing with their new ”underwater” friends, to crawling, standing and interacting with them. 4 in 1 fun grows and goes with your little one: Newborn Gym, Crawl-Through Tunnel, Stand and Play Table, Take-Along Learning Fun. Gym frame converts to crawl-through tunnel and toddler play table with 5 linkable sensory toys, including: submarine clackers, rollerball fish, crab teether, soft seahors pal with chime jellyfish mirror with soft ”tentacles”. Interactive, light-up play with snap-in activity spots, Mashine-washable mat. Everything ready for baby ages 0m and up.