30pcs 5x8x20 Mushroom Grow，Substrate Bags, 6 Mil Thick Mushroom Spawn，Cultivation Bags, Grain Bags with Injection Port for Filter Patch Bags with 0.2 Micron Filter for School Projects Hobby Farmers

• Product Content: You will receive 30 pieces of mushroom spawn bags. Plenty of quantity is enough for all your mushroom growing supplies.
• Large Size: Each mushroom growing bag measures approximately 50x20x12cm / 19.67x7.87x4.72inch, which can provide enough space for mushrooms to spawn and grow, and can make your mushrooms grow bigger and better.
• Excellent Breathability: Our mushroom growing grain bags with 0.2 micron filters are breathable and can exchange gases efficiently, helping to eliminate moisture while preventing pollutants from entering. Compared to mushroom growing trays or pots, our mushroom grow bags can save you space so you can grow more mushrooms.
• Premium Material: These mushroom spawn bags are made of good-quality polypropylene material, thick, durable and tear-resistant, with side gussets for added strength. Please note that temperatures above 257°F/125°C will easily cause mushroom bags to melt. Please keep the bags away from high temperatures when storing.
• Versatile: Our mushroom grow bags can be widely used for growing mushroom oyster spawn, Ganoderma lucidum, etc. Great for school projects, mushroom growing enthusiasts, professional mushroom growers, farmers, etc.

Specification: Color: transparent Material: thick polypropylene Product Size: 50x20x12cm / 19.67x7.87x4.72inch Package details: 30 x mushroom grow bags Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between different monitors, there may be a slight color difference existed.