MealMaster® two-piece rib container is designed to showcase pre-cooked ribs and other entrees or side dishes by providing outstanding anti-fog technology coupled with a high clarity dome for exceptional visual appeal. ZipSeal™ provides increased leak resistance with an improved dome seal and microwaveable base. The mineral filled polypropylene (MFPP) bases are made with 50% less plastic than traditional polypropylene (PP) containers, reducing fossil fuel based material usage. Food Container Type: Base/Lid Combo; Material(s): Mineral Filled Polypropylene (MFPP); Oriented Polystyrene (OPS); Material Type: Plastic; Color(s): Black/Clear.