Brand New four packet of 4 Blades Swift3 Blades and One Razor. Swift 3 is 3 blade Razor. One Cartridge has 3 Blades.( Like Gillette Mach3 or Sensor3 )Total 16 Blades After few attempts Supermax Swift 3 Razor fits GILLETTE Sensor Excel or Sensor 3 Cartridges and works Great..