Club head covers protect the clubs from striking each other and from weather and incidental damage while in the bag, make clubs more identifiable at a glance, and provide a personal touch to a player's clubs. The most common club head covers are for a player's driver and fairway woods, as modern designs have large hollow heads and long shafts that make them prone to damage, but covers for hybrids, putters, and even irons/wedges are also marketed.