The Asian Sonic set of 2 helps you store your food while keeping it hot and appetizing for long. The combo set has 2 capacities of 1000 ml and 1500 ml, which are made of premier quality food grade virgin plastic with stainless steel interiors. The PUF insulation maintains the temperature and flavour of the food for at least 5-6 hours. The exteriors are in a fresh shade of green while the interiors are in a shiny silver.