Upgraded razor blades for men designed to stay sharp longer. Lubrication strip helps protect skin from irritation and redness. Advanced skin guard helps stretch skin and prepare hair for a smooth shave. New improved quality for enhanced performance. Easy to replace every 3-6 months for optimal results. Item Name: Razor Blade Head Compatibility: S7000, S7310, S7370, S7530, S7780 Color: Blue Material: Metal Package Contents: 2 x Razor Blade Heads Note: This package includes only the items listed above; other products are not included. Lighting and monitor settings may cause slight color variations between the image and the actual product. Measurement may vary by up to +/- 1-3 cm.