Pack of 80 mushroom growing bags measuring 25 x 50 cm that provide plenty of space for mushroom cultivation and spawning, substrate and fruiting. Breathable side gussets stand upright and hold well. TEAR RESISTANCE: 6 extra thick, are designed to withstand the high temperatures that accompany sterilization. High temperature resistance 121-125 degrees Celsius EXCELLENT FILTRATION The 2 micron filter patch allows gases to be exchanged freely, while preventing contamination. The transparent bag helps to quickly spot any cases of contamination LIKE A PRO Mushroom growers worldwide use to significantly reduce the space needed for or spawn mushrooms compared to trays, vats MULTI-USE for inoculating media with mushroom oyster spawn, oyster mushrooms and more Specification: Thickness: Extra Thick 6 Sealing Method: Our mushroom bags can be sealed with an impulse sealer, or simply tie to seal. are durable and can be reusable most of the time. Content of the growing material: If the content of