Product Details This innovative fully automatic beer bottle cap comes in a variety of colors and has an insect - proof function. It is made of food - grade polypropylene (PP) material, suitable for standard crown - capped bottles and threaded bottles. It is reusable and easy to clean. It can also prevent opened bottles from being unnecessarily contaminated. It has a wide range of uses. It can be used as a pourer and can be printed on different advertising surfaces. It is very suitable for garden parties, barbecues, club gatherings, festivals, and beach trips. Product Features 1. **Innovative Fully Automatic Cap**: It is a fully automatic bottle stopper that can automatically open and close the cap, allowing you to enjoy your drink worry - free. 2. **Multi - color Design**: At garden parties and barbecues, you can use different colors to mark your bottles, making it easy to distribute drinks to the corresponding people. Let your favorite color appear on your bottles. 3. **Environmentally Friendly and Versatile**: It is made of food - contact materials, suitable for standard crown - capped bottles and threaded bottles (including glass bottles and PET bottles). It can be reused and can be easily cleaned with water. 4. **Safe and Healthy**: In places such as clubs, festivals, and beaches, it can protect opened bottles from unnecessary pollution or contaminants. It can also be used as a pourer, suitable for large - sized drinks. 5. **New Advertising Medium**: Through different advertising surfaces such as the outer and side of the cap, logos, slogans, or other content can be printed multiple times. It is applicable to almost all fields, such as breweries, beverage distributors, sports clubs, industrial customers, etc. Product Specifications - **Material**: Polypropylene (PP) - **Color**: Multi - color - **Size**: 6×3×4 cm - **Weight**: 130 grams, 250 grams Package Contents - 5 beer bottle caps or - 10 beer bottle caps