Closer shave with Zero Redness (vs. Gillette CustomPlus/Sensor 2 Disposable; it’s possible with Mach3) Nano-thin blades Superior cartridge geometry (vs. Gillette CustomPlus/Sensor2 Disposable) Individually spring-mounted blades All MACH3 cartridges can be used on all Mach3 razors The razor that raised the blade count to 3, the original Mach3 continues its legacy of close shaves. Its 3-blade technology offers both a comfortable shave and the longevity that comes only with exchangeable cartridges.