From Klober
The Eaves Filler Comb is a simple and effective way of preventing birds and vermin from entering the batten cavity, below profiled concrete interlocking tiles, whilst allowing airflow into the batten cavity. Area of application Suitable for profile tiles. Key Features Protects against vermin, whilst allowing airflow into the batten cavity. The integral fixing slots allow for quick and easy installation. Adjustable to suit any tile profile.