It’s a rocking rainbow that offers a spectrum of play possibilities! babu Rocker's modern twist on toy blocks deliver pure and simple creative play options for kids of all ages. From color sorting, stacking and balancing to creating a doughnut or merry-go-round, this beautiful rainbow puzzle is a tactile, timeless addition to your wooden toys. Each piece is crafted from solid hardwood with a non-toxic, BPA-free, water-based finish. • An heirloom-quality rocking rainbow puzzle crafted from solid hardwood with an eco-friendly finish.• Inspires hand-eye coordination, gross motor development and an understanding of balance as well as cause and effect.• Includes a wooden rocking base, wooden center block and 6 colorful wooden block segments.