The Rainbow Junior 300 set is a vibrant and engaging educational block kit that combines the proven Morphun Junior system with a brilliant rainbow color palette. Designed for children aged 3 years and above, this set contains 300 pieces in a variety of bright, translucent colors that spark imagination and bring an extra dimension of visual appeal to every construction. With the patented Morphun side-joining system, children can build not only up and down but also sideways and diagonally, allowing them to create more versatile and imaginative models than with traditional blocks.

Key features of the Rainbow Junior 300 include its striking rainbow-colored bricks, safe and durable ABS material, and rounded edges for safe handling. The pieces are large enough for easy grip yet precise enough to build stable and detailed structures. The set includes illustrated idea sheets that guide children from simple patterns and flat mosaics to exciting 3D creations such as houses, cars, bridges, and animals. The rainbow effect encourages children to explore color recognition, sorting, and pattern-making while enhancing the joy of building.

The educational benefits of the Rainbow Junior 300 are multifaceted. Children develop fine motor skills, hand–eye coordination, and problem-solving abilities as they connect the pieces. The use of vivid colors promotes sensory development and creativity, while the process of following building guides helps improve concentration and logical sequencing. Group play with the Rainbow Junior 300 fosters communication, teamwork, and cooperative learning. Parents and educators can use the set as a hands-on resource to teach mathematics, design principles, and even basic science concepts in a fun, interactive way.

Product specifications include 300 rainbow-colored Junior blocks in assorted shapes and sizes, suitable for ages 3 and up. The blocks comply with global safety standards including EN71, ASTM, and CPSIA, ensuring they are safe and non-toxic. Each set comes in a sturdy storage box with an instruction and idea booklet, making it practical for both home and classroom environments. The high-quality plastic ensures durability for long-term use, and additional sets can be combined for larger projects and group activities.

Using the Rainbow Junior 300 is intuitive and engaging. Children can simply snap the blocks together to build colorful towers, vehicles, or fantasy creatures. Beginners may follow the recipe-style building guides, while advanced learners can invent their own models by combining shapes and colors in countless ways. The rainbow palette inspires children to think creatively about design and aesthetics, encouraging them to explore art as well as engineering. With its unique blend of play, learning, and color discovery, the Rainbow Junior 300 is more than just a toy—it is a complete educational experience that nurtures imagination, creativity, and collaborative learning for children around the world.