The OXO POP 2.0 Four Piece Mini Container Set is perfect for keeping dried herbs and spices fresh, neat and within reach. The push-button airtight seal and space-efficient design stack perfectly with all POP Containers. Top rack dishwasher safe, with convenient fill lines, this must-have set takes organizing to the next level. POP Containers aren’t just for kitchens, use them anyplace you want organization. For best results, always use the button to open and close.