Penn Plax E2 Natural Cuttlebones, Cuttlebones by Penn-Plax

I read that these are also good for gerbils to chew on, gives them a little calcium boost - I bought this for a poorly furry who hurt his leg (possible fracture) thinking the extra calcium would do him good. Can't say for sure that the cuttlefish cured him, but he's all better now and he and his brothers have really enjoyed chewing on them!

I recently bought the Penn-Plax Bird‑Life Cuttlebone for my birds, and I’m really pleased with how well they’ve worked. These cuttlebones feel more durable and less brittle than others I’ve tried, so they don’t break apart as easily when my birds use them. My birds took to them right away and seem to enjoy chewing and pecking at them throughout the day. It’s nice knowing they help keep their beaks healthy and trimmed naturally. They’re also easy to attach in the cage and stay in place without falling out. Overall, these cuttlebones are a great value and a good choice if you want something sturdy and long‑lasting that your birds will actually use. I’d definitely recommend them to other bird owners!

This is by far the best cuttle bone product that I've bought for my bird. The price is great and the plastic holder that comes with it is sturdy and holds up to my conures aggressive chewing.

We rescue injured pigeons, they only one pecked at it. She seemed to appreciate it.

An expensive price, yet can't be replaced for the damage!? One of the cuttlebones is clearly broken in half..