These are sold by a very sweet lady on ebay. She custom makes them for your bird species. My birds love it and it can be a stand or hung. I would recommend. search Ebay for bird gyms.
I found using a common nail file helps a lot. I break it in half and give her half to chew on ( she loves it and it is a distraction) and then I lighlty file her nails. It is like a bird pedicure! :kiss: