This light and portable habitat makes it easy to breed and raise insects such as Butterflies, Caterpillars, and Praying Mantises.Many small animals also do well inside these cubes.The mesh sides allow air to flow through while preventing small predator insects from penetrating the fabric.It will even keep tiny feeder insects from escaping, such as wingless fruit flies.One side of the cage is made of a clear vinyl which acts as a viewing window.The large zipper opening gives you plenty of room to access the interior of the garden and makes it easy to release your grown butterflies!