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 hear it click twice, pump the top until the can becomes firm when squeezed, and save for later Portable and Compact Design. Compact and design for easy portability, allowing users to enjoy drinks 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 hear it click into place two times Color: Purple+Orange material: plastic Package Contents: 2 x Sealing cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.