Gillette's 5-blade technology delivers the comfort of 5 blades and the precision precision of 1 The blades are closer together for more comfort and less irritation Precision trimmer for precise edge trimming of hard-to-shave areas, such as sideburns and under the nose The flexible 15-microfin comfort guard carefully follows the contours of the face to help shave close Power Glide (telomere coated) blades reduce cutting force, providing incredible glide and comfort.