GraviTrax - Speed Starter Set (185 Pieces) is more than just a marble run; it’s an invitation to unleash creativity and learn through play! As we dive into building our own marble track systems, we’re not only engaging our minds but also enhancing skills like problem-solving, critical thinking, and spatial awareness. We love how this interactive construction toy allows our kids to experiment and iterate, creating entire marble run worlds—perfect for sparking their imaginations. 8 and up