Photo 1 of 80 Pack Mushroom Grow Bags with Microporous Filter Patchs, 8"x5"x20" Large Extra Thick 3 Mil Mushroom Cultivation Spawn Bag Bulk, Durable Autoclavable Bags for Substrates Strong Tear Resistant

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Photo 1 of 80 Pack Mushroom Grow Bags with Microporous Filter Patchs, 8"x5"x20" Large Extra Thick 3 Mil Mushroom Cultivation Spawn Bag Bulk, Durable Autoclavable Bags for Substrates Strong Tear Resistant