Our blades are now 2X preferred when used with FlexBall™ Technology. Our thinner, finer blades have an advanced low-resistance coating for less tug and pull. Product features: MicroComb that helps guide stubble to the blades, blade stabilizer that maintains optimal blade spacing for comfort, precision trimmer for accurate edging, our most advanced blade coating, enhanced Lubrastrip® with a smooth glide. For maximum contact, try with the Fusion ProGlide Power razor with FlexBall Technology. All Fusion blades fit all Fusion handles. For best shaving performance, use a Fusion ProGlide Manual Razor with FlexBall Technology with this razor blade. Product Details • Easy to use Cartridges are packed in a special case which makes it easy and safe to change them. • Cleaning mechanic Remove clogged hair from blades • Health Warnings Please do not move the razor horizontally or touch the blade-edge with hand to avoid cut. Keep out of reach of children.