This predator guard is designed to fit the Trio family of poles like the MPQ and DP-16(Posi-lock) purple martin bird house poles. This baffle is effective against animals like squirrels and raccoons, this Predator Guard can help protect your purple martins from these deadly climbing predators. Scalloped edge, dome top, white galvanized metal.
Fits all Nature House posts or other 1-3/4" posts.

Will not prevent small snakes from climbing up without some modifications.Weight: 6 lbs.