Tupperware Season Serve Approx..12 1/2 x 10 1/2 x 4 1/2 Red BPA FREE Dishwasher safe Marinades help make food taste more flavorful, but they can also be a mess to make. Well not anymore, thanks to one of Tupperware's most popular innovations! Simply place your meat or vegetables in the container, pour the marinade over the top, and close the container. Then turn over your meat or vegetable marinade container every three or four hours to ensure even seasoning. Special grids inside the marinade container help the marinade flow and season evenly; plus meat, fish, and veggies stay extra fresh inside, even overnight.