I am going to play a bit of devil's advocate here. In my experiences, once a boa has reached around 2 years old I never really found it necessary to have a hide. Maybe I'm just lucky with the animals I have had, but everyone in my collection seems to do great without one. Now maybe they would utilize it if I offered one, but all my boas eat, shed and act normally without a hide. I do have my younger boas in racks, so that might help in making them feel secure as well.