Size:  2" hole diameter (suitable for Red-Headed Woodpeckers, Purple Martins, Swallows)

Color:  Gray

NOTE:  This item is 3D Printed using fusible thermoplastic (polymer) filament.

Both internal and external surfaces of the extended tube have a textured finish to allow native cavity nesting birds to easily grip the entrance surface...

The predator guard serves to prevent chewing/gnawing predators from enlarging the entrance hole to gain access to the nesting cavity... it also assures proper sized entrance hole diameter...

The extended entrance tube provides added distance between the predator(s) and the nest box inhabitants (eggs/young/parents)...

Base Dimensions:  Approximately 2-1/2" x 2-1/2"

Tube length (depth):  Approximately 1-1/4"

Four 3/4" wood screws are included...

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This is an original design, often imitated, never duplicated...

Designed by a birder to be shared with fellow birders and our feathered friends...

***  INSIST ON THE ORIGINAL  ***