High Temperature Resistant Breathable Garden Supplies Cultivation Mushroom Growing Bags Spawn Bag

Label:Yes Air vent window aperture: 0.2um Color: Transparent Size: 250×500mm (Approx. 10×20") Air vent window size: 55×55mm Thickness: 0.06mm Package Included: 20 × Mushroom Grow Bag Material: Polypropylene Features: - Suitable for mushrooms, fungus, grains. - Square gusset bags can help increase the amount of mushrooms. - Using these bags for running spawn, and the mycelial fermentation cycle can be shortened. - Air vent window design saves a lot of labor, you do not require drilling and oxygenation. And it can isolate bacteria via nanotechnology. - Polypropylene, high temperature resistance.