The largest activity center in our toy collection boasts four quadrants of multi-level play. Includes: 8 wire bead runs, 11 gliders, springy crescent moon and rover solar panel, 2 wood clacking doors, 5 spinners, and 1 transparent door that slides up and down. Two of the wire tracks travel between quadrants. Adding an element of complexity as littles navigate the tracks. This robust activity toy supports motor development, cause-and-effect learning, and imaginative discovery. Its oversized design allows for up to 4 explorers to play together. Adult assembly required - hardware and tools included.