From the ManufacturerEverything you need to build your own Hexbug Nano Starter Set. Glows in the dark! 3 easy to connect pieces. 1 Glow in the Dark Nano specimen. Batteries included. Product DescriptionHere is everything you need to start your own Hexbug nano habitat! The pieces easily connect and disconnect and the doors really workyou get to design your own maze for your specimen. This set includes the extremely rare mutationthis Hexbug glows in the dark! Collect and connect with other Hexbug nano habitats to create a mega set!The set includes three easy to connect pieces one extremely rare glowinthedark Hexbug specimen one battery