20pcs 390500x0.08mm Mushroom Grain Grow Bags Pre Sealable Grow Bags

20pcs 390500x0.08mm Mushroom Grain Grow Bags Pre Sealable Grow Bags. 
  
Feature: 
- Suitable for mushrooms, fungus, grains. 
- Square gusset bags can help increase the number 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. 
 
Specifications: 
Material: Polypropylene; 
Size: 390×500mm; 
Color: Transparent; 
Thickness: 0.08mm; 
Air vent window size: 100×60mm; 
Air vent window aperture: 0.2um; 
  
Package included: 
20 ×Mushroom Grow Bag.