The Greenstar Pro Stainless Steel Twin Gear Set is used in the Greenstar Pro It is also compatible with the Greenstar Elite Use this to upgrade your regular Twin Gear Set to an all stainless steel version while retaining its advancd features such as Bio Ceramic and Magnetic Technology Pocket Recesses and Cutting Points Features . Greenstar Pro Stainless Steel Twin Gear Set. Compatible with the Greenstar Elite Specifications . Material Stainless Steel