Serendipity - yes the mesh is just smaller than the frame so kind of fits inside. I used a sanding block (nail file might work) in an attempt to smooth sharp bits. No pointy sticking out bits of mesh either as I cut very close to the square bit if that makes any sense. I don’t think duct tape is safe either especially not for a Syrian. They can and will chew it! That and pouching sticky things is dangerous too. That said my zoozone was meshed for chocho so didn’t have to worry about any monkey barring or chewing as she couldn’t even reach the top