The EZ-CLONE® Infinity Collar is the world’s #1 reusable plant cloning collar that is the choice for Agricultural and University research labs. The EZ-CLONE® Infinity Collar is made of silicone and is FDA food-grade compliant- which has the highest sterilization and reusability rating known in the market. 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! The EZ-CLONE® Infinity Collar comes in 16-Pack and 128-Pack options. Get rooted and get growing.TM