People love to pick up this sealed jar (4½" x 7½") of gooey simulated fat that is a reminder that excess calories equal excess pounds. Jar contains about 1 lb of goopy fat, which is what you could gain in just one week if your calories taken in exceed your calories burned by 500 calories a day. Label on the back describes how much weight you can gain in a year from excess calories. When settled at the bottom of the jar, the simulated fat measures approximately 1¼" from the jar’s bottom, allowing viewers to shake or turn the jar over and watch the goopy fat slowly drip in the jar. A great visual to explain what happens to excess calories.