LUBRICATION BEFORE AND AFTER the razor blades helping shield from irritation while you shave. The blue Lubrastrip gives a cooling, refreshing sensation during your shave, UPGRADED PROGLIDE BLADES LASTING 3X LONGER*: 5 ultra-sharp razor blades for ultimate closeness (*Vs Fusion5), 1 BLADE REFILL = 20 SHAVES. Get up to 20 shaves per blade refill, PRECISION TRIMMER: On the back for hard-to-reach places. Achieve a cleanly sculpted shave, All ProGlide Chill blade refills can fit all Gillette 5-bladed razor handles (excluding GilletteLabs)