My Chinchilla ate it already`

I liked the idea of it and thought it would be good for my Chinchilla to have a way to keep warm in the winter. It seemed like a hard, sturdy kind of plastic with big rounded edges so thought my chinchilla can't chew through it, but he already chewed one side of it up. Also, I thought it came with 3 straw matt inserts, but it only comes with one. I would not waste my money on this. It does seem well made and all but not if he can chew it up that fast. It came with some chew toys too, but I'm not impressed with the little straw balls, they are very small and weak and a chinchilla can chew through them too quickly and they are gone.