8x8 inches, 500. $250 deposit + cost of pepto bismol ($9.39 at Target)
See pepto bismol pictured that I would order: https://www.target.com/p/pepto-bismol-5-symptoms-digestive-relief-original-liquid---16-fl-oz--no-aasa/-/A-13368966 and let me know if there's a different type you're aware of that you want to use.