Features: Discover the bottle adapter, a practical solution for interchangeable bottle sizes. Made from quality plastic, this 28mm sparkling water bottle adapter is designed to securely fit various carbonated beverage machines. Suitable for households that enjoy creating their own bubbly drinks and seek flexibility in bottle options. Perfect for home kitchens and offices where users may need to switch between different bottle sizes easily. Shape your beverage routine with the bottle adapter. Specifications: Applicable model: For G100. Please note: the physical difference in color or difference, does not affect use, please do not mind, thank you! Material: plastic. Color: Black / White. Package contents: 1 x Bottle Adapter. 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 +/- 1-3 cm.