Pressure-sensitive seals and liners are a quick and easy way to safeguard your product with a tamper-evident topper while also preserving freshness by providing an airtight seal. These polystyrene foam liners, made from FDA-approved materials, are coated with a torque-activated adhesive and require no special equipment to apply. Simply place them over the mouth of any bottle or jar, and screw on your closure tightly. These single-use pressure-sensitive liners and seals are made to work with all container materials from glass bottles to plastic jars. Plus, they also peel off easily for consumer use.