COMFORTABLE FOR SENSITIVE SKIN: Engineered for a close, comfortable shave, this men's razor head replacement is perfect for sensitive skin. Comfort rings enhance glide and reduce friction. ADAPTABLE CUTTING PERFORMANCE: Individual flexing blades adjust to your unique face shape, capturing more hair in fewer passes with over 130,000 cutting actions per minute for superior cutting efficiency. TITANIUM COATED BLADES SYNX CUTTING SYSTEM: SynX hybrid cutting system combines the best of a rotary shaver with the best of a foil shaver. Experience the ultimate durability with titanium coated blades. COMFORT RING FLEXING BLADES: Enjoy a comfortable shave on all skin types. The comfort rings reduce friction by up to 30% and enhance glide, while the blades adapt to your facial contours for an efficient shaving experience. LIMITLESS X7 COMPATIBILITY: Experience shaving freedom, confidence, and comfort while keeping your Limitless X7 Rotary Shaver (XR1770-1TV) in peak performance with this razor head replacement.