The World's First and Only 7 Blade System. Dorco Blades offer a great shave and save you money versus other brands. Comes with 4 cartridges, each with 7, yes, SEVEN blades. Venetian Flow™: Allows for easy rinsing. This feature also increases blade life. Advanced Moisturizing Strip: Antioxidants from Argan oil and Calendula extract minimizes skin irritation and calms and protects even the most sensitive skin. Honeycomb Guard Bar: Soft rubber surface allows effortless gliding on the skin. The Pace 7 cartridge is compatible with the Dorco 3, 6, 6 Plus, and 7 blade handles. Mix-and-match to find the best shave for you.