Using the pen is simple - just remove the cap and start writing. The keyring can be used to hold your keys. For the pen, keep it capped when not in use to prevent the ink from drying out. Avoid dropping the pen as it might damage the nib. The keyring is quite sturdy, but try not to bend it forcefully. Clean the pen with a soft cloth and the keyring can be wiped with a damp cloth to keep them looking good.