The wired cartridge takes the standard, slim and dicrotic blades with the clear grommets while the slicer cartridge has 8 red grommets and 2 green grommets that belong to the slicer, mega and speed blades.The flat sintered standard has 5 grommets but the one you have is probably an older model.Currently there is no longer the 5 wheel grommets that used to be the 3 on the bottom and 2 on top. They are now sold as 4 on the bottom and 4 on the top for a total of 8 grommets.Please contact Gemini for better clarification and for any questions you have on this 310 891-0288