50Pcs 250x500x0.06mm PVC Mushroom Grow Bag Substrate High Temp Pre Sealable

Specification: Color: Transparent Material: Polypropylene Size: 250500mm (Approx. 1020") Thickness: 0.06mm Air vent window size: 5555mm Air vent window aperture: 0.2um 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. Package Included: 50 x Mushroom Grow Bag