The OXO Good Grips 20-Piece POP Container Set is an organization game-changer. Airtight, stackable, space-efficient, and now completely dishwasher safe, these Containers can be customized to fit any space. We refreshed POP to include a handy fill line and kept the curved corners for smooth dispensing. BPA-free POP Containers aren't just for kitchens: use them any place you want more organization. For best results, always use the button to open and close. Do not carry POP Containers by the lid.