Specification: Item Type: Mushroom Growing Still Air Box Material: PVC Weight: Approx. 1152g/40.6oz Package List:1 x Mushroom Growing Tent1 x Storage Bag Features Excellent PVC Material: This mushroom growing kit is made of excellent PVC material, which is wear resistant and durable, and has a long service life. 2 Air Vents: This mushroom growing kit has two air vents for fresh air exchange, which is convenient for working with both hands. Foldable: This mushroom growing kit can be folded, when not in use it can be folded up, which is convenient to store and carry. Zipper Design: This mushroom growing tent is designed with zipper, which is very convenient and quick to open and close. Simple Operation: This mushroom growing tent is very easy to use, placing soil directly into the tent provides an overall scientific growing environment.