Moss exofabulatronixx 5200 moss 855165004215 p open up a world of robotic wonders with the exofabulatronixx 5200 this remarkably intuitive robot construction system lets you build thousands of robot creations that react to the world around them using four different types of sensors pilot your robot using the included double brain block that connects to ios and android devices via bluetooth create your own robotic remote control front loader or race car rearrange the blocks to build a who