I improved the model to make sure my cat can't reach through. I think its easier to see inside both from far and close.

Would recommend using glue together with the pins to make sure it stays together if your pet is as aggressive as mine.. 😂

Used Shapr3D to recreate the model because I wasn't able to open the original model on my iPad. But big thanks to @chking for a great model and idea that I had the opportunity to remix!