Brand New 94mm Pressure Sensitive Foam Liner Safety Tamper Seals – Pack of 100 These are Pressure Sensitive seals (PS Foam Liner) that fit inside the lid of your jar, and when properly applied, will stay attached to the jar until they are peeled off. The seals have "Sealed for your protection" written on them., so that your customers know that you care about your product quality. 100 PCS OF 94mm Press & Seal Cap Liners Foam Sealed for Your Protection Fit jars or bottles with a 94mm opening Tips on using the cap liners: Lines are designed to be used as an inner seal to seal solid products, such as dry foods and pharmaceuticals & work with thick liquids such as creams and sauces These liners are NOT recommended for watery liquids like juices & especially essential oils Clean the lip of the container with alcohol to ensure there is no oily residue that will prevent the seals from sticking. To use the seals, place them inside the lid with the white side facing down