the razor-blade are well-sharpened for best results.
don’t press too hard while sharpening: try not to press too hard when sharpening your razor because this may end-up tearing the jeans. simply apply little pressure when sharpening your razor but you should try to be quick in order to create more friction which is required to sharpen the razor edges.
position the top of your razor in the direction you are rubbing the shaver on the pair of jeans: this actually means that you should point the razor other way so that the blades can glide gently over your jeans but avoid cutting them.
repeat the sharpening process: in case the razor-blade is still 