The fizz keeper comes with a data dial design, which provides time adjustment function and enables storage time tracking. You can replace the old drink lid with this drink sealer and press down by pumping so as to prevent waste your fizzy drinks again. It is constructed of ABS material. The diameter of the soda cover is 4.5cm, and the length is 5cm. It is perfect for soda and other fizzy drinks. Item Name: Soda Cover Material: ABS Features: Data Dial Design, Leakproof, Pressure Type Size Details: Diameter: 4.5cm/1.77"(Approx.) Length: 5cm/1.97"(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 Soda Cover