An American company has built a new drone that could improve the efficiency of deliveries. The drone is very different from other unmanned aircraft. It is made almost completely out of cardboard and has no motor. It can be packed with materials and sealed up with tape. Because the drones do not have a motor, they are designed to be dropped from airplanes. Hundreds of drones could be launched at once. Then they could be automatically guided to where they are supposed to go. The company says these drones could then complete deliveries to different places over an area covering hundreds of kilometers. The drones look like bigger versions of the paper airplanes we used to make as kids. But this light flyer is not a toy. It is aerodynamically designed and equipped with a small computer, a battery and sensors to guide it to the ground.