The Philips Norelco OneBladeis a revolutionary new electric grooming technology designed for men who wear stubble, beards, or facial hair styles. OneBlade trims, edges, and shaves any length of hair.The unique OneBlade shaving technology integrates a fast moving cutter (200x per second) with a dual protection system to give you an efficient comfortable shave on longer hairs. OneBlade does not shave too close, so your skin stays comfortable. Each replacement blade lasts up to 4 months. (For best shaving experience. Based on 2 full shaves per week. Actual results may vary.)Fits on all OneBlade, OneBlade Face + Body, and OneBlade Pro handles. Pack includes: 3 replacement blades.Contour FollowingOneBlade follows the contours of your face allowing you to effectively and comfortably trim and shave all areas of your face.Wet and DryOneBlade is water resistant, so it is easy to clean: just rinse it under the tap. You can shave dry or wet with foam, even in the showerDurable OneBladeThe blades are designed to last. Replacement is easy and hassle free. For optimal performance, you will need to replace the blade every 4 months. (For best shaving experience. Based on 2 full shaves per week. Actual results may vary). OneBlade's Dual Protection System Gives a Comfortable Shave Glide coating smoothly glides along your skin Rounded polymer tips guide the hairs to be instantly cut What's in the box: 3 replacement blades