Back By Request the Sintra Clinger Entrance. The Clinger entrance which is flexible and durable for the natural gourd or to modify your martin house from a round entrance to a starling resistant entrance with ease.
These flexible plastic plates can be attached to any type of housing (gourd or house) for changing your round entrances to Clinger (Starling proof) entrances. Plate is 3" x 4 1/2".
Hardware not included.