Material stainless steel Colour: Black Shape square Material type is free, PVC free About this project Quality: The durable food storage container set is made of unlined 304 food-grade stainless steel, which will not crack, rust, and retain taste or odor. The container nesting top cover adopts a sealing groove design, which is leak-proof like a rubber sealing ring, which helps to keep food fresh during the journey. They are perfect food storage containers for snacks, lunch or dinner. Endless storage options: great choices for fresh or dried fruits, pretzels, hummus and more! Eco-friendly and reusable lunch boxes suitable for children and adults enhance portion control. Use metal containers to simplify meal preparation! Small and portable: The capacity of each container is different, namely 400ML, 750ML and 1200ML. Food containers can provide sufficient food storage space without increasing the volume of your backpack, handbag or lunch box. Bring the container to school, work, or travel for snacks. Healthy concept: 3 stackable nested plastic lunch box lids are made of non-toxic LDPE No. 4 plastic. Our stainless steel containers are free of BPA, phthalates, lead and PVC. Easy to clean: Cleaning the stainless steel snack container is a breeze. The lunch container can be cleaned in the dishwasher, and the lid can only be placed on the top shelf.