5Pcs Mushroom Grow Bags, Autoclave Spawn Sterilized Grain Bag w/Self Healing Injection Port for Your 250x650mm (expand 390x650mm)

【Size】- Breathable window 5.5cmX5.5cm used for mushroom growing and spawn. 【High-quality, Durability】- Made from high-quality, 0.06mm polypropylene, these spawn bags are strong, tear-resistant, and designed to withstand autoclave sterilization for reliable mushroom cultivation. 【Self-healing injector port, easy to inoculate】- The built-in self-healing injector port ensures that the process of injecting spores or liquid cultures maintains a clean environment for optimal mycelium growth. 【Breathable Filter Patch for Gas Exchange】- Features a micron filter patch that allows proper oxygen exchange, promoting healthy mycelium colonization and faster mushroom growth. 【Package】- Includes 5Pcs Mushroom Grow Bags, ideal for growing various mushroom species like oyster, shiitake, lion's mane, and more. Great for beginners and experienced growers alike!