1. High-Quality PVC Material: Constructed from premium PVC, this mushroom growing kit offers excellent resistance to wear, ensuring a long-lasting product. The robust material provides a stable environment for optimal mushroom growth. 2. Efficient Ventilation System: Featuring two ventilation ports, this mushroom grow bag allows for effective air exchange, promoting healthy mushroom development. The design facilitates easy monitoring and maintenance of ideal growing conditions. 3. Space-Saving Foldable Design: The foldable design of this still air box allows for easy storage and portability. When not in use, it can be compactly stored, making it suitable for both indoor and outdoor cultivation. 4. User-Friendly Zipper Closure: The smooth zipper closure ensures quick and easy access to the mushroom grow tent. This feature simplifies maintenance and harvesting, eliminating the hassle of complex setup or disassembly procedures. 5. Simple and Intuitive Use: Designed for ease of use, this mushroom grow kit requires only the addition of soil or substrate to create an optimized environment for mushroom cultivation. Its simplicity makes it ideal for both beginners and experienced growers. Color:A:Black Material:PVC Package Contents: 1 * Mushroom cultivation tent Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.