Sleek and 100% Plastic Free, these containers are a must-have Zero Waste Essential! These Package Free Stainless Steel Containers are a favorite amongst the PF Team! Made of high quality, 18-10 food grade 316 stainless steel. The lids have a non-removable silicone seal that has been factory-installed without adhesive. The three stainless steel latches are a breeze to open quickly for children and adults alike. The lid should be washed by hand in warm soapy water, and is not oven safe. The base is dishwasher, oven, and fire safe (but not microwave safe)! These containers are sold individually. The lid has a removable silicone seal that is easy to clean.