The Microppose 50-Pack of multi-use self-healing injection ports - the ultimate solution for effortless inoculation when creating your own spawn. Made from a special blend of high-temperature silicone and EDPM Foam Rubber, these ports feature a high-temp 3M adhesive backing that can withstand autoclave temperatures. Simply peel and stick to jar lids or spawn bags for a seamless process. Plus, these ports are reusable, making them a durable and cost-effective option for repeated use. Say goodbye to guesswork and hello to a hassle-free inoculation process.