Yitu wang & Joy Zhang are creative designers that own many innovative idea. Re-knife is just one of their brilliant idea that is designed for sharpen the pencil. This kind of knife is designed to be used for re-sharpening pencil. Where with this re-Knife people will not need against their pencil into cement or the floor. The Re-knife is a handy device that is designed in smooth and stylish shape. On this Re-Knife can be found two surfaces side, that are the rough surface that made from portable stone, and the other one is smooth surface made from stainless steel