Gillette Fusion Pro Shield Razor with Flexball Technology Gillette Fusion Pro Shield Razor with Flexball Technology uses Gillette's most advanced cartridge with lubrication before & after the blades for enhanced protection from irritation while you shave. Its 5 precision blades provide less tug & pull for incredible comfort while the Flex Ball Technology makes maximum contact on contours to get virtually every hair. It also has a precision trimmer on back for accurate edging. For best shaving performance, use Gillette Fusion Pro Shield Razor Blades with this razor handle.