Sumyth 1812438 Chef Professional 8 Inches Kitchen Knife-High Carbon Stainless Steel, Ultra Sharp and Ergonomic Handle-Perfect for Chopping, Slicin, Purple Bases are made with Tritan plastic that resists stains and odors. Flex & Seal lids lock in freshness and are easy to seal & remove. With the easy-find lids system, lids snap to the bottom of the container and to each other. Containers stack smartly and fit efficiently side by side to save space. Microwave, dishwasher, and freezer safe. BPA-free. NSF Certified. Made in the USA. 1-year limited warranty.