This 12x18 inch poster is printed on premium, durable paper. Proudly Made in the USA by PosterEnvy. The perfect size for any room. PosterEnvy is a family owned business, delivering top-notch posters around the world for over 20 years. Our posters are designed to last — they won't fade or pucker for years of enjoyment. Every poster features crisp, vivid artwork. We are a solar powered company. This educational poster illustrates kinetic and potential energy transformation using a roller coaster diagram, with clear definitions and conservation of energy principle. Ideal for middle school science classrooms.