100 packs of 15 x 35 cm planting bags provide sufficient space for mushroom cultivation and substrate fruiting. These breathable bags with side flaps can stand upright and remain durable. Tear resistance: Extra thick 6 mil bag designed to withstand high temperatures during sterilization. Heat resistant up to 121–125°C. Effective filtration: 2-micrometre filter membrane allows gas exchange while preventing contamination. Transparent bag enables easy monitoring for contamination. Compared to trays and pots, these bags significantly reduce the space required for mushroom growing or spawning. Suitable for medium inoculation of oyster mushroom spawn, cloning oyster mushrooms, and similar applications. Thickness: Extra thick 6 mil Sealing: These mushroom bags can be sealed using an impulse sealer or tied closed. Durable and reusable in most cases. Water content of culture material: Excessive moisture in the medium may impair ventilation, slow hyphal growth due to lack of oxygen, cause water accumulation in the lower half of the bag, and restrict hyphal penetration. Size: 15 x 35 cm Material: Polypropylene (PP) Color: Transparent Package Contents: 100 x Mushroom Grow Bag Note: Light and display differences may cause slight color variation between the image and the actual item. Measurement may vary by ±1–3 cm.