thanks for the replys,as i said just wanted to if they could rip it.at the moment my yemen is in a 3"x2"x2" wooden viv with a mesh back.the reason i wanted to change to a mesh cage,is its sitting on top of my boa's viv.and this makes it had to open the glass doors.on my boas viv.so i thought,a mesh cage would solve this problem.and giv the cham better air flow.the cham has to go on the top of the boa as i have no where else to put him. thanks gary