The enclosure is perfectly suited to breeding butterflies at home. It is easy to use, big enough to hold some plants on which they can lay eggs and to give them room to flutter around and do their courtship dances. It requires no assembly whatsoever and the butterflies are easy to observe. The zipper door opens outwards and is large enough to allow for holding butterflies, cleaning etc. In short, it is absolutely perfect. I’m a Very, very happy customer with lots of butterfly eggs and six beautiful swallowtail butterflies. Thank you.