Made of sturdy, high quality foam. Helps keep products fresh for longer periods of time. Compatible with auto wrapping equipment, this foam tray makes packaging meats, cheese and produce easy and efficient, helping to save time and energy. #2S Tray. Food Container Type: Tray; Material(s): Foam; Food Container Material Type: Foam; Color(s): White.. Made of sturdy, high quality foam. Helps keep products fresh for longer periods of time. Compatible with auto wrapping equipment, this foam tray makes packaging meats, cheese and produce easy and efficient, helping to save time and energy.