SENENQU 30 Pack Mushroom Grow Bags, Large 8" X 5" X 20" Mushroom Growing Bags with 0.2 Micron Filter, 3 Mil Thick Mushroom Spawn Bags for Mushrooms Substrate Cultivation, Durable & Tear Resistant

• 【Premium Material】Mushroom grow bags are made out of polypropylene, these bags can handle the extreme heat that comes with sterilization. They also feature a 0.5 micron filter that allows for adequate air exchange while keeping out contaminants. 【Large Size Mushroom Bags】8 x 5 x 20 inches Mushroom spawn bags provide more than enough room for growing, spawning, substrate ,and fruiting mushrooms , stay abundant and efficient with mushroom grow kit. Compared with trays and buckets, mushroom growers can significantly reduce the space required to grow or produce mushrooms. 【Durable & Tear Resistant Mushroom Bags】The mushroom grow bag is 3mm thick, which make mushroom bags stronger, more durable, and more tear-resistant than average mushroom spawn bag of the same size and design, withstanding a maximum weight of 5lbs. 【Side-gusseted Breathable Mushroom Bags】Mushroom grow bags are designed with side gussets for added strength and durability, when filled they create a sturdy stand up bag, they will stand up strong and have a secure bottom seal. 【Wide application】These autoclavable mushroom grow bags are our go-to for indoor mushroom cultivation and spawn production. Our mushroom grow bags are suitable for mushrooms, bamboo fungus and reishi mushrooms, substrates, grains,etc.