It's made of 3pcs plastic containers and 3pcs plastic lids. The small box could put into big box, so it safe a lot space and reduce the freight charge. it has a great use for storage and keep your food fresh and lasting longer. It's made by plastic injection mould in injection machines. The material for plastic boxes is high transparent polypropylene, it can lets you easily see what's stored inside.

All the food boxes are microwave safe; freezer safe and dishwasher safe.

The storage container could pass FDA and any SGS test.