20PC Mushroom Grow Bag Spawn Substrate High Temp Pre Sealable PVC 250×500x0.08mm

Specifications Color TransparentMaterial PolypropyleneSize 250 500mm 9 84x19 69 Thickness 0 08mmAir vent window size 55 55mmAir vent window aperture 0 2umFeature 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