The lid is platinum silicon, and it is a ceramic sealed, organic storage vessel that can provide baby food even when the child is away from home.
The scale marks make it easy to meter and allow up to 3 hours of warm air cooling for outdoor use.
When
using the microwave oven, infrared rays penetrate the ceramic, making it safe
to electromagnetic waves and do not deteriorate easily when ingredients are
stored.
The lid is transparent so you can check the contents of the cover.