Coloured calcium perches safe for birds??

[WinniePooh]

I went to a pet shop to get my bird a calcium stick but its yellow. Is it safe for my bird to chew on???
Im always worried things are safe for my bird and this seems like something that im VERY unsure about
.

 

[zERo]

I went to a pet shop to get my bird a calcium stick but its yellow. Is it safe for my bird to chew on???
Im always worried things are safe for my bird and this seems like something that im VERY unsure about
.View attachment 50656

I use these for my birds.

Usually they have ingredients listed on the tag.
My birds don’t eat them, they chew on them sometimes though.