[High-Efficiency Shaving] Precision-engineered 0.03mm blades with 8-directional flex capture 99.7% of 0.1mm stubble. Over 12 months the Pro 4 replacement head cut over 5,500,000 hairs.[Zero- Skin Contact System] 4 ultra-thin titanium foils adapt to jaw/neck . Our 4D Floating Head is more comfortable and closer than standard 3-head designs.[Compatible with] Compatible with for Gold Pro, for Silver Pro, for Diamond Pro, for Butterfly Kiss 4 Head Razors.[1s Click Replacement] design is easy to replace. IPX7 waterproof construction allows tap rinsing.Note:The base is not included.Color:As ShownMaterial:MetalPackage Contents:2 * Professional Replacement Head2 * brushOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.