HOCTRAKA 50-Pcs Mushroom Grow Bags Mushroom Spawn Bags, Extra Thick 3 Mil Bags, Large Size 6" X 5" X 20" 0.2 Micron Filter Breathable, Micron Bags That Stand Up Durable Bags - Tear Resistant Strong - HCBG-MSB50

• [LARGE SIZE, GREAT VALUE]--50 Pack of 6" X 5" X 20" Grow Bags that allow plenty of room for mushroom growing and spawn, substrate and fruiting. These side-gusseted breathable bags stand up and hold strong. Edible species breathable bag make by polypropylene breathable bag/ PP breathable bag Bacterial permeability barrier. [TEAR RESISTANT]--Extra Thick 3 Mil Bags, 2x thicker than most bags, these are designed to withstand high temperatures that come with sterilization. Can be reusable. Typically for 8-10 pounds block! [EXCELLENT FILTERING]--Breathable window 2" X 2", 0.2 Micron filter patch allows for gas to freely be exchanged, while keeping contaminates out. The clear bag helps to quickly spot any instances of contamination. [GROW LIKE A PRO]--Mushroom growers around the globe use these bags to dramatically reduce space needed to grow or spawn mushrooms when compared to trays, tubs. [MULTI USE]--For inoculation of media with mushroom oyster spawn, clone oyster mushrooms and more. Autoclavable and Durable Easily grow your own mushrooms in bulk 100% sterilized premium mushroom growing substrate Fortified with all necessary vitamins and minerals Moisture content guaranteed and ph balanced Works perfectly with fully colonized spawn.