JOYIN 137Pcs Glowing Marble Run - Construction Building Blocks Toys with 15 Glow in The Dark Plastic Marbles, STEM Toy Presents for Boys and Girls, Gift for Christmas

Premium Quality, Great Value：This Marble Run Set with 137 high-quality pieces, including various tracks and marbles, offering endless creativity and fun for kids

Easy Assembly：Comes with a detailed assembly guide. All parts are made from high-quality materials, ensuring they won't deform and stay stable once built

Transparent Parts and Glow-in-the-Dark Marbles：The set includes transparent track parts and glow-in-the-dark marbles, adding an exciting visual element to the fun

STEM Educational Toy：It’s a great STEM learning tool that helps kids develop creativity, logical thinking, and problem-solving skills through hand-eye coordination and logical thinking training

Child-Friendly Materials：Made from BPA-free materials with rounded edges, ensuring safety for children during play