100pcs Self-Healing Injection Ports for Mason Jar Lids & Mushroom Spawn Bags, 20mm Diameter Silicone Injection Ports Adhesive Synthetic Filter Stickers for Grain Bags, Mushroom Growing

100pcs Self-Healing Injection Ports for Mason Jar Lids & Mushroom Spawn Bags, 20mm Diameter Silicone Injection Ports Adhesive Synthetic Filter Stickers for Grain Bags, Mushroom Growing

• Package Includes: You will receive 100 pieces of self-healing injection ports, which can maintain air exchange while preventing pollution, promoting optimal growth conditions. Enough for you to use and replace.
• Product Size: The diameter of the injection ports measure approximately 20mm / 0.79 inch, and 3mm / 0.12 inch in thickness. Designed to fit most standard mason jar lids and commonly used spawn bags.
• Premium Material: Our self-healing injection ports are made of good quality silicone, reliable self-healing, durable and not easy to damage or break, allowing multiple injections without losing integrity.
• Easy to Use: The self-healing injection ports feature with strong adhesive backing for easy adherence to mason jar lids, grain bags, or other surfaces, providing a solid seal for your mushroom or grain bags.
• Wide Application: Perfect for mason jar lids, spawn bags, and other equipment used in mushroom growing. The silicone injection ports are also suitable for commercial growers or hobbyists.