Using these wine bottle covers is a breeze. Simply place the knit scarf around the wine bottle and then put the matching hat on top. To turn on the lights, just locate the battery compartment and switch it on. You can choose between blinking, twinkling, or a still light mode according to your preference. When it comes to maintenance, keep the covers in a dry place. If they get dirty, gently hand - wash them in cold water and let them air dry. Be careful not to get the battery compartment wet as it may damage the lights. Also, remember to replace the batteries when they run out to keep the lights shining bright.