Three bevel, hollow ground, shaving quality stainless steel razor blade. (Super Sharp) Plated steel rib to secure blade. Medium impact plastic handle. Manufactured in the USA to military specification #MIL-R-365408 This item was designed and patented by WWII veteran Warren Grosjean, and is MADE IN THE USA. It conforms to military specification #MIL-R-365408; the National Stock Number (NSN) is 6515-01-363-1212. This item is included in USAF Aircrew Survival kits, and many others.