To use these Triceratops fossil posters and prints, you can easily hang them on your wall using common hanging tools like nails or picture hangers. You can place them in your living room, bedroom, or study to decorate the space. When it comes to cleaning, use a soft, dry cloth to gently wipe the surface to keep them looking good. Avoid exposing them to direct sunlight for long periods as it may fade the colors. Also, be careful not to scratch the prints while handling them.