How can I safely make hole sizes in cage items safe for gliders?
I have some items between 3-1”

Apparently, my reply didn't post in your other thread. Sorry.

Minimum 1/2" maximum 2.75" holes. They don't have to be round necessarily.

I use things like flat toys, or 1/2" by 1/2 " tenax, or safe plastic mesh. I've used a poker chip, cut a coffee can lid cut down, just about anything. I drill small holes in the toy and what ever I'm using to cover the hole and zip tie in place. Any glue or hot glue is not safe.

Thank you so much!