This chunky wooden puzzle features a rainbow-shaped base with 30 colorful pieces. It features 4 shades of 6 different colors. This resource develops problem-solving, concentration and fine motor skills as children fit the colorful pieces into the rainbow. Children can place the puzzle pieces using trial and error while learning about different hues and shades of color. The thick pieces can also be stacked to build the rainbow vertically. This puzzle is constructed of high-quality, chunky wood that's easy for small hands to manipulate. The components are durable and designed to last for years use. The pieces are coated with non-toxic paint and sealed with a clear matt varnish. For ages 3+. Size of base: 18.9" L x 9.4"H. Size of smallest piece: 1.5"L x 0.4"H.