Erva Post Mounted Squirrel Baffle, Galvanised, 60cm dia.

Any experience with how effective this is with raccoons?

Does this baffle only slide onto the 4x4 post, or does the baffle depart separate into two halves to wrap around the post? I have a 2 story deck that

Will it keep cats from climbing trees

How does the Squirrel baffle fare against raccoons?