Happy birthday! This may be the best idea ever. Send someone a birthday cake IN their birthday card! The little pack comes with ingredients for an individual size cake (just add water) and even a little measuring and mixing spoon. Also comes with frosting, sprinkles, and a candle. The pop up container is oven safe, but the recipe is designed for microwave. 7.5x1.5x5 inches. 0.6 lb. Festive and delicious!