This marble run set includes 137 durable pieces, featuring a variety of tracks and marbles for extended creative play. The components are made from high-quality materials designed to maintain stability after assembly, supported by a detailed instruction guide for easy setup. Transparent track sections and glow-in-the-dark marbles enhance visual engagement during play. The set supports STEM learning by encouraging problem-solving, logical thinking, and hand-eye coordination. Constructed from BPA-free materials with smooth, rounded edges, it meets safety standards for child use.