Rotary Latch DesignThis mini wine stopper uses rotary latch design, simple operation. Simply twist the top of the wine stopper into the locked position to fully lock the wine stopper onto the bottle neck. Sealed effectively and keeps the wine fresh. Safe and high quality materialThe red wine stopper, made of food grade silica gel inside, and the outside is made of durable ABS, to ensure that the product is safe and non-toxic to the human body, which makes it safe to use. After use, simply wipe the inner silicone seal with a cloth to prevent mildew and reuse. Suitable for most wine bottlesSuitable for wine bottles with a mouth diameter of 18-19mm. We recommend that you check if the size of the wine cork fits your bottle before purchasing. Easy to UseTurn the top counterclockwise to unlock before use. Firmly insert into the bottleneck, rotate the upper part clockwise until a click is heard to lock the joint. To open again, unlock the cap before removing. Exquisite and smallSmooth texture with fine processing, small size, easy to store.