100pcs Self-Healing Injection Ports, Mushroom Growing Supplies & 100pcs Synthetic Filter Sticker for Spawn Bags & Jar Lids

["Package Includes: Our package contains 100pcs self-healing injection ports & 100pcs synthetic filter stickers, providing everything you need for successful mushroom cultivation.","Size Detail: Self-healing injection ports measure about 2cm/0.79 inch in diameter, the inner diameter is about 1cm/0.39 inch, the synthetic filter sticker is about 2.5x2.5cm/0.98x0.98 inch. Perfect for spawn bags, mason jars, and cultivation containers.","Premium Material: The self-healing injection port is made from butyl rubber material, and the filter sticker is made of paper. heat-resistant, durable materials that maintain performance through multiple sterilisation cycles, providing reliable protection throughout your mushroom growing journey","Advanced Filtration Technology: Synthetic filter stickers provide for optimal gas exchange while blocking contaminants, withstand high temperatures and pressure for sterile mushroom cultivation environments.","Easy Application & Secure Adhesion: Bonds securely to clean, dry surfaces of jar lids and spawn bags, ensuring no displacement during sterilisation."]