The Brother Max Food Portioners make meal times really easy to prepare for, fill straight from the pan to save time & mess, store & serve. Because its easier to pour puree food straight from the pan, our pots click snugly together so there are no gaps for food to drop in to, & their lids stay open so they wont get in the way (ensure the snuggest fit by squeezing the pots together from the inside with your thumb & forefinger). The individual pots click together for easy filling & storage, either feed from the pot or pop out the contents to a plate or bowl. Food can be served hot or cold from them & they are safe to go straight from freezer into microwave. Brother Max also include a special pen for writing contents on pots