This is a fun and unique Halloween decoration. This door knocker is a great way to greet your trick-or-treaters or add a spooky touch to your home this Halloween. This vampire bat door knocker is a fun and easy way to add a unique touch of Halloween decor to your home, and is sure to spook and delight your guests. This door knocker is perfect for Halloween parties, trick-or-treaters, or as a Halloween gift for friends and family.