NESTING & STACKABLE: Innovative space-saving design; access any size container or lid easily. All products in the nest lock range fit together so you can build your own collection to suit your needs MULTI-USE: Endless uses! Use in kitchen for baking ingredients, left-overs, meal prep, fruits, veggies, salads, nuts and of course other non-food items for home or on the go. KITCHEN SAFE: Dishwasher, microwave, and freezer safe. FOOD-SAFE: BPA-Free and Food-Grade Safe PP material. COLORED LIDS AND TRANSPARENT BOTTOM: Designed specifically to make your life easier and more organized! Transparent base allows you to easily see contents. Colored lid allows you to organize and distinguish by color. SharpChef’s nesting, stackable, plastic containers are food-safe (BPA-free), Microwaveable and also freezable! Store left-over meals and easily heat up later. Meal-prep and freeze entire meals with these color-coded durable containers. Store easily in your cabinet without taking up a large amount of space. These nesting containers were designed to fit perfectly into each other for organizational storage. Various sizes allow you to choose the perfect size to fit your needs.