Never buy beer pong cups again. Made with practicality and purpose in mind, these reusable pong cups have the same size opening as a standard party cup with a unique wide base to prevent them from tipping over or sliding off the table mid-game. Perfect for playing outdoors and withstanding wind gusts. Four fill lines let you know exactly how much to pour and distinctly separate the "freshmen" from the "seniors". Great for your Beirut game and tons of other drinking games (like flip cup), they're made from translucent plastic so you can clearly see exactly how much beer is in each cup and make sure every contest is fair. In stock and ready to ship. Features: Made of sturdy translucent plastic (you'll never hear "is there any beer in that cup?" again). Made specifically for beer pong. Equipped with 4 fill line levels to accommodate everyone from beginners to the pros. Unique design has a wide base to prevent cups from tipping over. Great for many other drinking games including flip cup. 100% dishwasher safe (place cups on the top shelf of dishwasher). Specs: Dimensions: 4.9"H x 3.9" Diameter (top) and 2.9" Diameter (bottom). Due to the cup's wide base, they do not fit into most specialty inflatable tables or racks. Includes: (20) Red Beer Pong Cups. (2) Black Water Cups.