Large Zipper Size - It's designed with a big size that won't fetter the insect the unfolded measures is 15.7 x 15.7 x 23.6 inches. It can hold large 2 milkweed plants. Multi Functions - It's convenient for you to watch the growth of insects closely. Witness one of nature's most spectacular transformations up close. Manufacturered by Scotamalone. Mesh Design - Mesh on 5 sides promotes healthy air flow especially fine and neat mesh can avoid tiny ants wasps and other predator insects flying into it. Collapsible Design - A transparent surface allows you to see the insect's activities clearer. What's more collapsible design is convenient for easy to reuse and storage. High Quality Material - Mesh material makes it in a good airflow to raise the butterfly.