BLACK+BLUM Multi-Function containers and bowls are made from innovative microwave-safe stainless steel and are the latest and most versatile range. They are also dishwasher safe, oven safe (without lid only) and freezer safe. They are ideal for the growing trend of meal prepping, packaging-free food storage and eating on the go. Available in three shapes and seven sizes, you can choose how and for what you want to use the Multi-Function range: for different types of food, portion sizes or simply for the whole family. The food boxes are also 100% leak-proof and airtight, so they keep food fresher for longer. The semi-transparent lid means you won't forget what's inside and can reduce food waste.