For 2nd stage weaning to portion store and serve pureed food 4 individual pots that click together for easy filling to make preparation and meal times stress freeeach 40ml pot that equates to one 2nd stage weaning portion has a lock tight leak proof hinged lid with connectors that also act as insulating handles for safe handling of hot food push through bases makes removal of frozen food much easier if you dont want to feed from the pot microwave dishwasher steril