ComfortCut Blades 27 self-sharpening blades comfortably cut each hair right above skin level for a smooth, even finish, every time. Replace your blades with SH30 every 2 years. 3D Floating Heads Floating heads move freely in three directions to keep contact with the curves of your face without nicking your skin. Anti-Corrosion Shaving System Our shaver blades are made from surgical grade hypoallergenic steel to resist corrosion, prevent impurities and protect your skin. Wet and Dry Shaving Choose a convenient dry shave, or pair with your favorite foam or gel for a refreshing wet shave, even in the shower. Pop-up Trimmer Refine and define your mustache and sideburns to complete your look with the pop-up trimmer. 40 minutes of Cordless Shaving In just an hour, the durable NiMH battery is fully charged for about 13 shaves. In a hurry? A 5-minute quick charge gives you enough power for one shave. Ergonomic Grip Never lose your grip. The ergonomic handle with rubber stays secure and comfortable, even when wet.