The EZ-Clone Infinity Collar is the world's #1 reusable plant cloning collar that is the choice for Agricultural and University The EZ-Clone Infinity Collar is the world's #1 reusable plant cloning collar that is the choice for Agricultural and University research labs. This is an exceptional choice of cloning collar for those seeking top-grade sustainable solutions. You can wash, machine-wash, boil, microwave, bleach, and even place it in your pressure cooker or oven to sterilize!Custom-designed specifically for EZ-Clone Aeroponic Cloning Systems. EZ-Clone Infinity Collar makes it easy to insert and remove plants without disturbing the roots.The EZ-Clone Infinity Collar comes in 16-Pack and 128-Pack options.