Heath™ AH-12D Deluxe Aluminum Purple Martin House with Door Stops, 12-Room Rainy_Weather Ambistar electronic ballasts are an

Ambistar electronic ballasts are an easy-to-install

Superior gripping force: provides high mechanical advantage to convert hand tightening torque into superior bit gripping force

Trunk diameter 7" (17

Grooved guide ensures consistent stapling

Heath™ AH-12D Deluxe Aluminum Purple Martin House with Door Stops, 12-Room Rainy_Weather Ambistar electronic ballasts are anThe 12 room Deluxe Aluminum Purple Martin House features a durable, hexagonal design. Lightweight aluminum construction makes this house easier to raise and lower than wooden houses, and also keeps the inside temperature cool for Purple Martins. Each home includes door stops and protective rails. As the colony grows, so can the house; just add a unit. Mounting pole sold separately. Assembly instructions included. 12 room Purple Martin house