Scope of delivery: You will receive 50 mushroom cultivation bags measuring 32 x 50 cm. Square gusseted bags help increase the number of fungi and provide enough space for growth and spawning of fungi and substrate. High quality material: made of high quality polypropylene, durable , not easy to damage, with good tear resistance, temperature resistance, it is the best choice for mushroom cultivation. Can let you long-term use and reuse. Air valve design: Ventilation window design saves a lot of labor. You don't need to drill holes and supply oxygen. Our mushroom spawn bags are equipped with filter vents to absorb fresh air and keep unwanted items out. The transparent bag quickly detects all contamination situations. The cultivation of mushrooms is essential: the use of these bags to lay eggs can shorten the fermentation cycle of the mycelium. This mushroom grow bag saves time and effort compared to trays and pots. Widely Used: Mushroom plant bags are generally used in indoor gardens, planting tents or greenhouses, farms, etc., ideal for growing mushrooms, mushrooms, cereals and other plants.