It is very suitable for hotels, dormitories, apartments, short-term rentals, bathrooms, bedrooms or private rooms. It can be used to prevent strangers from entering and is a good guarantee for the safety of yourself and your property.Plastic Bottle Password Combination Lock Wine Stopper Vacuum Fresh-keeping DeviceFeatures:High Quality Black Plastic Red Wine Stopper Digital Bottle.This a code lock which can lock the mouth of the red wine bottle, makes the wine bottle sealed, keep the red wine in bottle fresh.It can prevent red wine being stolen drunk or switched.Red wine with this code lock will be very safe.It\'s suitable to be used in pub, wine shop, hotel, super market etc.It\'s also suitable for promotional gifts.Specifications:Color: BlackMaterial: PlasticSize: approx. 4x4x4cm/1.57x1.57x1.57inNotes:Due to the light and screen setting difference, the color of the item may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.How to set the password?The initial password of the code lock is 000, and make the "0" on the 3 rollers is aligned on the mark line on the roller.The pen into the password settings button according to the spire (usually in the side and the bottom surface of the lock body), need to stay still set before the end of the rotation number wheels set your new password, the number indicating the alignment line, release the button back to the normal position, which successfully set a new password. If you want to change your password again, please repeat the above steps. Any questions,kindly please feel free to ask us,Thank you.Thank you very much for your trust and support! Here also solemnly declare to you that our products are absolutely 100% brand new in quality. If you have any problems with the products, please contact us in time, and we will solve them online for you 24 hours!