This set of Silicone Glass Storage Jar Seals from Argon Tableware helps maintain the freshness and flavour of your homemade jams, preserves, pasta and other foods. While most manufacturers use traditional rubber seals, our Argon Tableware seals are crafted from silicone, offering a far higher level of tensile strength and durability in comparison. Available in a range of sizes and choice of colours, our collection can be tailored perfectly to suit your need. PLEASE NOTE - In order to ensure the best possible performance, it is vital to properly prepare your seals alongside your storage jars by following our handy how-to walkthrough here. Features and Benefits: Made from Silicone - Offers higher tensile strength and durability than traditional rubber seals Creates an Airtight Seal - Preserves freshness and flavour of homemade jams, pickles and preserves Compatible with Argon Tableware Glass Storage Jars - Sizes 350ml to 3 Litre