Using this toy is super easy. To transform it from a rhino to a robot, just follow the obvious joints and fold the parts gently. When combining it with other CT - CHIYOU mechas, make sure the connection points fit well. As for maintenance, keep it away from sharp objects to avoid scratches. If it gets dirty, you can use a soft, dry cloth to wipe it. Also, don't expose it to direct sunlight for a long time to prevent color fading. Have fun playing with your new robot toy!