Be careful when opening and closing your blade; do not rub the edge on the scales becuase the edges are extremely fine and delicate on most blades. After shaving with your blade always use a soft thin cloth or tissue paper between the scales of your blades to protect the edge. Always use hot water to rinse your blade after use and carefully wipe clean. Use mineral oil on the blade when storing for long periods. If you are unfamiliar with using and maintaining straight razors for shaving refer to YouTube for instructional videos.