Mushroom Grow Bags. 
Premium Material: Mushroom Grow Bags, is made of safe, non-toxic, and high-temperature resistant polypropylene, It is perfectly suited for mushroom cultivation. which is not easy to tear or damage
Proper Size: 20 x 12 x 50 cm Grow Bags ideal for mushroom growing and ,benefit for spawn substrate breeding.
Contaminant Filtering : Mushroom Grow Bags Allow the efficient exchange and passage of gas without letting contaminants in. The very fine filter patches provide optimum filtering action without sacrificing breathability.
Application: Our Thick Mushroom Spawn Bags It is suitable for a variety of fungi, Mushroom and Dictyophora lucidum. It can provide enough space for mushroom growth