JOYIN 170Pcs Marble Run Premium Toy Set, Construction Building Blocks Toys, STEM Educational Block Toy(120 Plastic Pieces + 50 Glass Marbles)

170-Piece Marble Run Building Set: Create exciting marble runs with 170 pieces, including 50 glass marbles(5 of them are glow-in-the-dark marbles),and 120 track and building accessories. Kids can build, rebuild and experiment with different layouts for hands-on construction fun. Glow-in-the-Dark Marble Fun: Discover an extra surprise with glow-in-the-dark marbles for kids that add a fun glowing effect after being exposed to light. Kids can enjoy watching the marbles travel through their custom-built tracks for an engaging marble run experience. Marble run for 3 4 5 8 10 year olds. Colorful Building Play: Translucent track pieces create an eye-catching look when placed under room lighting, making every marble run more visually engaging. Colorful components encourage kids to design unique structures while enjoying hands-on building fun. STEM Learning Through Building: This educational building toy encourages kids ages 3+ to explore cause and effect, balance, sequencing and problem-solving as they build tracks and test how marbles move. Rebuilding different layouts turns each play session into a new learning challenge. Great Boys Toys for 3+ year old boys. Unique Gifts for 3 4 5 6 8+ Year Old Boys & Girls: Made from BPA-free materials with rounded edges, ensuring safety for children during play. It is a thoughtful choice for birthday celebrations, holiday surprises, Christmas morning, or other special occasions. With colorful tracks, marbles, and glow-in-the-dark pieces, this kids marble run brings creative building and rolling fun to play and makes an exciting present for young builders.