Pack of 25 Young's corks. These corks are silicone coated and do not need to be soaked.
Do not boil or soak these corks. They just need a quick sterilise and rinse in cold water before bottling.
The higher the cork quality, the longer the possible storage time of your wine. The lower the quality, the more pits, tears and other defects in the cork.
With budget corks, and you should inspect and discard corks with most defects (otherwise your wine will get oxidised and/or bottles will leak).