20Pcs 320×500x0.08mm PVC Mushroom Grow Bag Substrate High Temp Pre Sealable

Specifications Color TransparentMaterial PolypropyleneSize 320 500mm 12 60x19 69 Thickness 0 08mmAir vent window size 55 55mmAir vent window aperture 0 2um Feature 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 Package included 20 Mushroom Grow Bag