Our Prom 2020 Mason Jar Mug has you covered when you need a Prom favor fast or you can't decide on the perfect custom imprint. The 16 oz. clear glass mug comes in a classic mason jar style with a handle for easy use. A stylish "Prom 2020" design is featured on the front in black. Because it comes pre-printed, it's ready to ship right now, so you can cross one more thing off your Prom "to do" list.