OXO Tot Baby Blocks Freezer Storage Containers give homemade baby food the same care you put into preparing it. Easily portion, store, freeze, heat, and serve the meals you’ve cooked. On the go? The containers are airtight, watertight, and leakproof. Peek at the clear Containers to identify the contents, then pop one into your bag for simple defrosting and feeding when you’re out and about. An easy-open, easy-shut lid (even with one hand) makes the Containers a carefree choice.