Secure black runner to blade for Evo and X-Evo trimmer models. Secure white runner to blade for the Hitter, Protégé and Cruiser trimmer models. This blade is compatible with all Gamma+ and StyleCraft models. The package includes just 1 blade so you are not locked into a blade combination that you do not need. Buy the exact blade you need, Gamma+ offers you to mix and match your blades as you desire.