CKB LTD Space Rail Perpetual Rollercoaster Glow in The Dark Level 4 - Marble Roller Coaster Run DIY Track Build Kit Space Rail Track Run Construction GadgetThe CKB Ltd Space Rail Level 4 Glow in the Dark is a deluxe 26,000mm perpetual rollercoaster spectacle that actually GLOWS in the dark! This self perpetuating glow in the dark rollercoaster is out of this world and is sure to entertain for hours! With 5 separate tracks and glow in the dark rails, enjoy watching 4 steel balls leave the lift, roll around 26,000mm length of track and navigate an impressive series of see saw drops, loops, twists and more