The product you’re describing seems to be a set of four rectangular stackable food and meal preparation containers, each with a capacity of 1000ml. Model number MX7023 suggests…

How to Use 4 Rectangular Stackable Food & Meal Preparation Containers

Unpacking the Containers

• Carefully open the package and remove the containers and lids.
• Inspect each container and lid for any damage that might have occurred during shipping.
• Wash the containers and lids with warm soapy water before first use to ensure they are clean and ready for food storage.

Using the Containers for Food Storage

• Select the food items or meals you wish to store in the containers.
• Ensure the food is at room temperature or cooler before placing it in the containers.
• Fill each container with up to 1000ml of food, leaving a small space at the top to allow the lid to fit securely.
• Secure the lid onto the container, ensuring it is fully sealed to preserve freshness.

Stacking and Storing

• Once the containers are sealed, stack them neatly to save space in your refrigerator, pantry, or freezer.
• Ensure the stack is stable to prevent tipping over.

Cleaning and Maintenance

• After use, clean the containers and lids with warm soapy water.
• For stubborn stains, let them soak in soapy water for a few minutes before washing.
• Dry the containers and lids thoroughly before storing them away.
• Store the containers with lids off to allow air circulation and prevent any odors.

Additional Tips

• Label each container with the contents and date to keep track of stored food.
• Avoid using the containers for extremely hot foods directly to prevent warping.
• Check compatibility with microwave and dishwasher if you intend to use them for reheating or cleaning.