I got another question that concerning the cages
Mine has a plastic base pan. Actually, I found that 98% of cages that sold in Hong Kong are of plastic base pan( some can be removed but some not) and with painting/ coating wire. They look lovely and cutie themselves. Some are with wire base. But the shop assistants always told you not to put them on the base in order to seperate the bedding. They said the chins love to walk on solid ground and love to stay on the wood shaving/ other kind of bedding materials(some are made of recycle paper, like the one for cats, but it said it is for small animal like rabbits, hamsters, chins and even snakes.)
acutually, one of my chin, mama, had to cut one arm off since her arm was trapped in between the wire grids. So, i would why all the cages i saw in the non-hong kong websites are with wire base. Besides, my chins do chew the sides of the plastic base and the wire coating , but no problems happened at all. So, would it be ok to use the plastic base and let the chins chew the plastic? But i think i can't find a cage that is big enough and without plasitic base.
P.s. My cage also has a plastic fence surround it to avoid the poop and litter from flying out.