There are several instruments that a surgeon might consider using when inserting and removing the Malyugin Ring. Only one however, was designed to work hand in hand with the Malyugin Ring specifically. With a design from Robert Osher MD. the Osher/ Malyugin Ring manipulator was created to fit the specific dimensions and tolerances of the ring. The device fits inside the scrolls of the Malyugin Ring to allow for complete control when placing or removing them from the iris. We are so confident this is the best tool to use with the Malyugin Ring, that we include one free with your first order of Malyugin Rings. Recommended incision size: 0.8mm or larger Compatible with: Malyugin Ring Classic Use: Re-usable Shipped Quantity: Individual.