The HydroFarm neoprene cloning collars are designed specifically for use with EZ-Clone cloning systems. These inserts are engineered to protect and hold cuttings upright in the lid, exposing the top leaves to air and light, while allowing the stems of cuttings to be completely unrestricted to the inside of the misting chamber. Collars are pre-slit for easy insertion of cuttings, and are roughly 2-inches in diameter.