NÜEDGE knives is the world's first environmentally sustainable kitchen knife. Like "Dollar Shave Club", NÜEDGE knives™ provide customers with a kitchen knife that is always sharp. Dull blades are changed out in less than 10 seconds. Blades are recyclable, re-sharpenable and/or disposable. Customers who sign up for a subscription can recycle their own blades or mail them back to NÜEDGE via an included return box.