Spark creativity and innovation: introduce your child to the fascinating world of construction and physics with the discovery™ #mindblown glow roll marble run light-up construction set. This kit combines the excitement of racing with the fun of building, creating a dynamic play experience that entertains and educates. A spectacle of light and motion: with two led marbles, led tiles, and spotlights included, kids can enjoy their marble runs day or night. The glowing components add an extra layer of excitement and visibility to the intricate paths and spectacular stunts they build. Build and race: the easy-to-assemble tile design not only simplifies construction but also results in sturdier and more reliable tracks. Children can unleash their creativity to design elaborate courses with drops, spins, and jumps, learning fundamental physics principles in the process. Product features: 92 pieces for versatile track construction Led marbles and light-up components Engages children in stem learning Suitable for kids ages 6 and up Perfect for solo or group play Package includes: Building pieces 2 led marbles 4 white marbles 2 led spotlights 2 led tiles  Learning Skill: Creative Thinking Power Source: Battery (not Included) Recommended Ages: 5 Years And Up Measurements: 13 Depth/Inches, 2.5 Width/Inches, 17 Length/Inches Assembly: Assembly Required Base Material: 50% Acrylonitrile Butadiene Styrene, 34% Plastic, 16% Metal Care: Wipe Clean Country of Origin: Imported p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 15.0px Calibri; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} WARNING: CHOKING HAZARD – small parts. Not for children under 3 years.