Merkur's long-lasting Super Platinum Stainless Steel double edge blades come in packs of 10. These blades not only fit all Merkur double edge razors, they fit any other brand as well. Blades are made to the highest standards using the finest stainless steel with a platinum coating for enhanced comfort. Precision manufacturing assures superior performance in terms of closeness of shave, smoothness of stroke, and longevity. Consequently, among experienced wet shavers Merkur blades are among the most highly regarded. Each blade is individually wrapped and contained in plastic-free packaging. To avoid rapidly dulling the blade's sharp edge, remember to always rinse it after use, never wipe it. Made in Solingen, Germany. $6.95

A razor blade is so sharp designers measure the edge in angstroms. 1 angstrom = 1/10,000,000 of a millimeter. A sheet of copy paper is about 1,000,000 angstroms thick. The extreme edge of a razor blade can be less than 300 angstroms thick, which means it is less than 1/1,000 the diameter of a human hair. We are talking about nano-scale technology.