ith a view to enabling your scissors to be utilized smoothly for a longer period of time, we take pleasure   in recommending you some confidential methods of how to prolong the life span of the scissors as follows: By the time you discover the blades are becoming even only slightly dull, you merely have to use a piece of Balsa wood or leather grinder to strap gently on the blades,which will then easily appear to look sharp again soon.   When sharpening the blades on a grinding stone,notice should be taken that you can sharp only the front side of the blade.While the procedure of sharpening on a grinding stone is done through,use a piece of Balsa wood or leather grinder to complete the process of sharpening satisfactorily.   To sharp the blades up to approximately 40° is enough, and not to go beyond the limit of 41° or 42°.   Handle the scissors with good care when cutting hair.The blade may crack if scissors are dropped on the floor or tossed roughly onto a table or some other hard surface.   Remove the permanent wave solution from the blades and wash off the dirt thereon. Corrosion may greatly reduce the life span of the scissors.   After used the scissors it is advisable to drop a litter bit oil on the back side close to the Screw, so as to prevent the scissors from being easily to gather dirt.