200PCS Rye Grain Berries Subste, Mushroom Growing Spawn Bag Mushroom Spawn Grow Bag High Temp Pre Sealable

100% and high qualityUsing these bags for spawning can shorten the hyphal fermentation cycleSquare guet bags can help increase the number of mushrooms.Suitable for mushrooms, fungus, grains. suitable and bamboo wood ganoderma wood chipsThe venting window design saves a lot of labor and you don't need ing and oxygenation. And it can separate bacteria by nanotechnology. Polypropylene, high temperature resistanceColour:WhiteMaterial:PVCProduct unfolded size: 18 x 35CM, folded size: 10 x 35cmSingle layer thickne: 0.08mmAir vent window size: 55x55mmAir vent window aperture: 0.2umPackage Contents:200 x Growing BagsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.