20 pcs. 6 Sizes Mushroom Growth Bag Plastic High Temperature Planting BagOOTDTY Features:The Mushroom Growing Bag is suitable for mushrooms, mushrooms, grains and so on. Designed to help increase the amount of mushrooms. Using these bags to spawn and the mycelium fermentation cycle can be shortened. Vent window design saves a lot of labor, no need drilling and oxygenation. And it can isolate bacteria through nanotechnology. The mushroom grow bag is made of high-quality polypropylene material, with high temperature resistance, , breathable and non-toxic. Mushroom growth bag only, other accessories demo in the picture are not included! Specification:Material: Plastic 6 sizes optional: 15x35cm/15x50cm/18x35cm/25x50cm/32x45cm/32x50cm Thickness: 0.06mm Vent window size: 5.5x5.5cm Window aperture vent: 0.2um Color: transparent Quantity: 20pcsNote:No retail package. Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included: 20 x Mushroom Growth Bags