Key benefits Secures bottles against theft while keeping contents fresh: a combination lock seals the bottle mouth, creating an airtight, leakproof closure. Durable construction: made from ABS + zinc alloy for reliable sealing and longterm use. Easy to set and change the code: userconfigurable combination with a factory default for quick setup. Wide compatibility: fits most wine and beer bottles with neck diameters between 26 mm and 28 mm. What it does Locks and seals the bottle mouth to maintain freshness and prevent spills. Provides physical protection and deterrence against unauthorized opening. Leakproof lock cover ensures safe storage at home, in restaurants, or during transport. Specifications Material: ABS + zinc alloy Compatibility: fits bottles with a mouth diameter of 26 mm to 28 mm (most wine and beer bottles) Default password: 000 Lock type: combination lock with mechanical password wheel and DIP switch setting Password setting method 1. The factory default password is 000. 2. Move the DIP switch from position A to position B to enter the passwordsetting state. 3. Turn the password wheel to set a password. 4. Move the DIP switch back to position A to save and exit the passwordsetting state. Practical use scenarios Home: Keep opened bottles in the kitchen or wine rack sealed and protected from spills or accidental opening. Restaurant or small bar: Secure bottles on service carts or openbottle storage to reduce tampering and loss. Outdoor events or parties: Prevent spills and unauthorized access while transporting or serving wine and beer. Why customers choose this product Simple, reliable mechanical operation—no batteries required. Solid materials provide both a tight seal and theft deterrence. Straightforward compatibility information (26–28 mm) helps ensure a correct fit. Care and fit tips Measure the bottle mouth if uncertain; this lock fits bottles between 26 mm and 28 mm in diameter. Ensure the DIP switch is fully in position B while setting a code, then it to A to lock in the change.