A. Product Details This innovative fully automatic beer bottle cap is available in a variety of colors and has an insect - proof function. It is made of food - grade polypropylene (PP) material and is suitable for standard crown - capped bottles and threaded bottles. It is reusable and easy to clean. It can prevent opened bottles from being 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 suitable for garden parties, barbecues, club gatherings, festivals, and beach trips. B. Product Features 1. Innovative Fully Automatic Cap: It is a fully automatic bottle stopper that can open and close the cap automatically, allowing users to enjoy their drink with less worry. 2. Multi - color Design: At garden parties and barbecues, different colors can be used to mark bottles, making it easier 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 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 many fields, such as breweries, beverage distributors, sports clubs, industrial customers, etc. C. Product Specifications - Material: Polypropylene (PP) - Color: Multi - color - Size: 6×3×4 cm - Weight: 130 grams, 250 grams D. Package Contents - 5 beer bottle caps or - 10 beer bottle caps