I think only for mach 3, could be that patent has expired for that click system on fusion but not for actual cartridge.I assume this means the patents have expired?
The Mach 3 model is a 3 blade version.To bad they aren't only 3 blade
I must of looked at it wrong I thought the one was more then 3 fit both fusion & mach 3The Mach 3 model is a 3 blade version.