Pressurization Technology. Utilizes a specially designed mechanism that seals the can airtight, preventing the escape of carbon dioxide and maintaining optimal pressure.User-Friendly Operation. Simple and intuitive operation for users of all ages. Just place the device on top of the opened can until you hear it click twice, pump the top until the can becomes firm when squeezed, and save for later.Portable and Compact Design. Compact and lightweight design for easy portability, allowing users to enjoy fizzy drinks on the go without worrying about premature carbonation loss.Eco-Friendly and Cost-Effective. Provides a money saving solution by reducing the need for consumers to discard half-consumed cans, ultimately saving money and reducing beverage waste.Be Sure You Hear 2 Clicks When Installing. If you only press hard enough to hear one click, you will not have a complete seal and the product will not work. Press hard enough until you hear it click into place two times. Introducing the can drink lid with Pressurization Technology This innovative device utilizes a specially designed mechanism to seal your opened can airtight, preventing the escape of carbon dioxide and maintaining optimal pressure. Its user-friendly operation makes it simple and intuitive for users of all ages. Just place the device on top of the opened can until you hear it click twice, pump the top until the can becomes firm when squeezed, and save for later. The portable and compact design allows you to enjoy fizzy drinks on the go without worrying about premature carbonation loss. Not only is it eco-friendly by reducing beverage waste, but it also provides a cost-effective solution by eliminating the need to discard half-consumed cans, ultimately saving you money. Be sure to hear 2 clicks when installing to ensure a complete seal. Made of high-quality plastic material, this durable product is available in multiple colors and features a removable switch for easy use. Its compact and portable design makes it perfect for household use or taking it out as a spare. Item Name: Can Drink Lid Material: Plastic Features: Removable Switch, Press-on Design, Compact Size Details: L: 6.1cm/2.4", W: 5.8cm/2.28", H: 2.5cm/0.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Can Drink Lid