Gizmo had a slipped disk 2 years ago and was dragging his back legs, so the vet said complete rest in a cage might help him recover. After 6 weeks cage rest we put him on your Mobile Bones, and within days we saw an improvement.
Now he runs around like nothing ever happened, after the vets told us he may never be able to walk far, never mind run, he still runs about like he used to, and keeps up with Chin-Chin (Mr Chin).
Here is a photo of them both, last month. They are always together as mates.