Promote problem-solving, concentration and fine motor skills with this chunky Building Rainbows Puzzle! It consists a rainbow-shaped base with 30 colourful pieces. Children can place the puzzle pieces using trial and error while learning about different hues and shades of colour. Kids can also stack these pieces to build the rainbow vertically. This puzzle is constructed of high-quality chunky wood that’s safe and easy for small hands to manipulate. The components are durable and designed to last for years. Size of smallest piece: 4cm L x 1cm H (1-1/2" L x 1/2" H).