DIY Educational Toys Spacerail Level 2 Glow In The Dark Marble Roller Coaster with Steel Balls 10000mm 231-2Features:.Space-Track level 2 Glow-in-the-dark includes 193pcs set - 10,000mm of Glowing Rail and 2 steel balls included in this fantastic set - Requires batteries. Batteries NOT included.Join the fun of SpaceRail! Now it glows in the dark! Featuring a vertical corkscrew, and consecutive loops, the light up rails of this intermediate level set means the fun doesn't end when the lights go out. Perfect for physics classrooms, expert Lego builders, and anyone that loves a challenge in thinking and building.Whether you're a first-time SpaceRailer or veteran from the days of SpaceWarp, explore the various levels of SpaceRail's marble roller coasters and stretch your imagination..Space-Track is a line of do-it-yourself marble roller coasters that you can assemble and have fun building, including cutting tracks to the correct size, forming cubes, loops, runs and drops, and attaching everything to metal rods in the plastic base..Once our Science Education toy is assembled, enjoy hours of rolling metal ball entertainment. SpaceRail is a crazy fun, self-perpetuation gizmo that will dazzle children and adults alike. Are you ready to build one of the world's most advanced marble runs?Specifications:.Model:231-2.Color:As Pictures Shown.Noctilucence: Green Fluorescence.Material:ABS.Rail Length:10000mm.Steel Balls: 2pcs.Suitable for: Age Over 7.Packing:Colorful BoxPackage Content:.1 x Spacerail.1 x User Manual in English Chinese