Features: Brand New and high quality. Suitable for pressure sensitive foam seals, cap seal. The seals come with "sealed for your protection" printing in red ink. Made of foam material, soft, non-toxic, tasteless, with great seal performance. Not only can improve the enterprise output value, but also extend the product storage function Widely used in medicine, food, health products and cosmetics and some chemical products, sealed packaging. Advantage: 1. Help preserve freshness of your product 2. Help prevent oils & liquids from leaking 3. Help prevent product contamination 4. Help instill customer confidence 5. Help authenticate product integrity How to use: Place the liner onto the opening of the bottle/jar. Make sure the rim is dry, clean and smooth. The one side with word should be the upper side (see picture shown). Twist your cap onto the bottle. Leave in place for 30 minutes. This gives the adhesive time to release leaving the liner attached to the rim. You will see the liner sealed closely onto the rim of the bottle/jar opening after you take off the outside cap 30 mins later. Specifications: Material: Foam Color: White + Red / White + Black Size (Diameter): 20mm, 24mm, 28mm, 38mm Package included:  500pcs Safety Tamper Seals If the order quantity is large, it can be customized, Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.