The three independently flexing heads of this shaver swivel with a full range of motion to ensure ideal skin contact in curved. The three shaving tracks offer about 50% more shaving surface than standard, single track rotary shaving heads. This shaver also has ultra thin heads with both slots and micro holes that shave long hairs and catch the shortest stubble. The patented tube trimmer technology allows precision and maneuverability - perfect for trimming moustaches and sideburns.