The first three-blade razor now battery powered, which reduces irritation and requires fewer strokes is now with TEN improved microfins, improved spring blades, and a pivoting head with greater flexability than previous Gillette products, It produces an incredibly close shave. It also has a blue lubrication strip that fades as the razor is used to signify the blade is finished. All Mach3 handles can use all Mach3 cartridges.