Little Treasures 233-3g Space Rail, Glow in the Dark, Level 3 Marble Roller Coaster Kit with Steel Balls, Glow-Rail - Space Rail, Space Warp, Great Educational Toy for Boys and Girls, 13,500 mm Space-track level three glow-in-the-dark includes 13,500mm of glowing rail and 3 steal balls included, requires batteries but batteries not included The fun of space rail now glows in the dark featuring a vertical corkscrew, seesaw drop and two consecutive loops Whether you're a first time space railer or veteran from the days of space warp, explore the various levels of space rail's marble roller coasters Space-track is a line of do-it-yourself marble roller coasters that you can assemble and have fun building Once our science education toy is assembled, enjoy hours of rolling metal ball entertainment