I have a 22 year old African Gray who absolutely LOVES these! I get her these as well as the 5" ones and she loves them both. It's great fun to chew the colored outside off and then throw them off the top of the cage so mom can pick them up for her. She chews at them until the whole thing is chewed into pieces. She's not real thrilled with the 7" ones, however. I think they may be just a little more than she can comfortably handle. She can hold the smaller ones in her foot and chew them up, the larger ones she has to leave laying to chew on them so they aren't as much fun. I think the 7" ones are more Macaw size.

Veronica