5 blade proglide system 1 precision trimmerall fusion cartridges can be used with all fusion handlesfusion proglide power razorfusion power cartridges sold separately incredible comfort even if you shave every day1 new thinner finer blades glide effortlessly through hair with less tug and pullprincipal blades vs fusion 2 a microcomb that helps guide stubble to the blades3 1 precision trimmer blade redesigned pre