Here with another review of a product I just got in the mail today. This bell is "guaranteed indestructible" by your bird. It makes sort of a cow bell mixed with a wind chime sound, not annoying at all, I actually enjoyed ringing myself before I gave it to them, lol. My birds also enjoy it, my lovebird especially loves bells and giving them a tap with her beak so it rings while she closes her eyes to sleep.
The colours I got were random, but I'm sure you could request colours if you want, I believe
they also come in red, yellow and blue. My birds haven't been able to get their beaks on the clapper inside. They are powder coated, the only bare metal is the top piece to hang it from the bars + far inside the bell where no beaks reach, but you could easily change it to any desirable material if you wanted. You can also buy just the bell, no chain, from Polly's Pet Products.
I got the size small and it's actually a little bit bigger than I expected, I got a picture beside a ruler (in centimeters) so people can get an idea before they decide to get it, if they do. I bought mine on Amazon, it arrived 3 days earlier than expected. If you aren't able to order from Amazon, I initially asked the company if they'd ship to me directly and they were more than willing to give a shipping estimate, etc.
Overall, would highly recommend thus far.
They're available in Small, Medium, and Large.
Polly's Pet Product Website:
Polly's Pet Products
Here are photos: