JOSEPH JOSEPH | Nest Lock 3-Piece Container | Red | BPA-free polypropylene | Space-saving, nesting design Easy-find, snap-together lids and colour-coded bases Airtight, leak-proof and stackable lids Freezer, microwave and dishwasher safe (top rack only) BPA free. A perfectly-designed storage system that saves space, keeps food fresh, and is easy to use - convenient for storing and transporting meals. Plus, this BPA-free set is safe to use in the freezer, microwave, and dishwasher (top rack only).