Double-edge razors, often known and referred to as safety razors, utilize a single razor blade with two sharp sides one on each end of the razor handle. The skin is protected from all but the edge of the razor with a guard, hence safety razor. Why these are ideal for you: Affordability: Replacement blades are more affordable than current multi-blade razors and their two sides extend each unit's lifespan. Better Access: In many cases, the blade's slimmer design enables improved access and removal of hair in tough-to-reach areas like under the nose and neck crevices. Closeness: Many feel these blades provide a closer and smoother shave than multi-blade counterparts Benefits of Butterfly Design: Speed to open Safety while loading blade Offers adjustment in blade angle Features: Twist Open technology makes changing blades easy Perfect angle makes it easier for a smooth, clean, comfortable shave for all hair types (beard, hair stub, body hair, etc.) Material: Stainless Steel Handle Size: 3.75 in Weight: 1.8 oz Blade size: 2.5x4.5cm Easy Blade Replacement with Universal Fitting (including Astra, Dorco, Shark, etc.) Package Includes: 1 x Stainless Steel Butterfly Safety Razor 5 x Stainless Steel Replacement Blades