Treat Obsessed Malinois
I have a 55 Belgian Malinois, Luci, that needs to be kept busy. Otherwise, she makes her own busy with destroying something.
This toy keeps her occupied for hours getting treats out. When it is empty, she brings it to me for a refill.
It is sturdy even against her biting, chewing, and rough housing.
It will be ordering multiple to keep around the house for her to hunt and play with.