they just love to eat right through them

I have owned many of these - between gerbils and our chinchilla, they just love to eat right through them. This one however failed to meet my expectations. I tried to attach it to the cage and the next day I found it on the floor. The screw had come completely out - apparently the hole drilled for the screw was too big and so it wouldn't stay attached to the cage. Very disappointed. I ended up just leaving it on the floor of the cage.

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