Using this product is super easy. First, to transform each robot from a construction vehicle, just follow the natural movement of the parts without needing any extra pieces. When you want to combine all 6 robots into the 18 - foot one, match the connection points on each robot. The red LEDs will light up when the magnets inside get close. As for maintenance, keep them away from sharp objects to avoid scratching the metallic paint. Don't expose them to extreme temperatures as it might damage the ABS material. Also, remember that the product images you see now are of unpainted prototypes, and we'll update them later.