Material and seal performance Metal lid made from iron for reliable strength and shape retention Designed to create a tight, leakproof, airtight seal to keep food fresh and prevent spills Ease of use Simple to apply and remove for fast, userfriendly canning and storage Compatible with standard glass canning jars; available for widemouth and regularmouth styles so you can choose the right fit Size and compatibility Compact design fits the correct jar size for preserving jams, jellies, sauces and other foods Works with both large/wide mouth and regular mouth canning jars when matched to the proper size Durability and quantity Manufactured to resist deformation under normal use so lids retain their sealing performance Supplied in a large quantity to meet multiple canning, storing, and gifting needs Practical use scenarios Home canning jams and jellies: creates an airtight seal to protect shelf life and flavor Preserving pickles, sauces or marinades: prevents leaks during storage and transport Pantry and fridge storage: seals dry goods, leftovers, and ingredients to reduce spoilage What to expect Iron metal lids that deliver dependable sealing, easy handling, and durable performance when paired with the correct jar size. Suitable for routine home canning and everyday food storage tasks.