100 packs of 15 x 35 cm planting bags provide ample space for mushroom cultivation and substrate fruiting. These breathable bags with side flaps are designed to stand upright and maintain structural integrity. Tear resistance: Extra thick 6 mil bag constructed to withstand high temperatures during sterilization, with heat resistance up to 121125C. Features a 2-micrometre filter membrane that allows gas exchange while preventing contamination. Transparent material enables easy monitoring for contaminants. Compared to traditional trays and pots, these bags help reduce the space required for mushroom growing. Suitable for medium-scale inoculation of oyster mushroom spawn and similar applications. Thickness: Extra thick 6 mil. Sealing method: Can be sealed using an impulse sealer or by tying. Durable design allows for reuse in most cases. Water content guidance: Excessive moisture in the culture medium may impair ventilation, slow mycelium growth due to oxygen deficiency, cause water pooling in the lower half of the bag, and limit hyphal development. Size: 15 x 35 cm. Material: Polypropylene (PP). Color: Transparent. Package includes: 100 x Mushroom grow bags. Contents limited to items listed; other products not included. Note: Lighting and display settings may cause slight color variations between image and actual product. Measurement tolerance: +/- 13 cm.