Build the cool "flying saucer" and its electronic launcher with this Brain Box Expansion Kit featuring additional pieces to add to your Brain Box collection. Brainbox manufacture a great range of electronic kits with a cool easy to use press-stud system for making the contacts. Kind of like classic electronic kits but much easier to use and no pesky wire to lose or stab yourself with. As with all Brainbox kits there is no soldering or trimming required - the kit uses simple brightly coloured components with press-stud connectors. Requires 2x AA batteries (not included) 5+