Stiletto be employed along with the dagger as a fighting weapon; a 1536 dueling treatise authored by Achille Marozzo, "Opera Nova", contains sections on dagger and stiletto fighting. By the time of the Renaissance, the term stiletto had come to describe a range of slender thrusting knives closely resembling the French poignard, many with conventional dagger-profile blades and sharpened edges, but always retaining the slim profile and needle-like point. To lighten the weapon, many stilettos were equipped with blades carrying fullers over a portion of their length. The stiletto remained a popular weapon of criminals or political assassins from the 16th
Stiletto heel in the mainstream shops. A version of the stiletto heel was reintroduced in 1974 by Manolo Blahnik, who dubbed his "new" heel the "Needle". Similar heels were stocked at the big Biba store in London, by Russell & Bromley and by smaller boutiques. Old, unsold stocks of pointed-toe stilettos and contemporary efforts to replicate them (lacking the true stiletto heel because of changes in the way heels were by then being mass-produced) were sold in street fashion markets and became popular with punks and with other fashion "tribes" of the late 1970s until supplies of the inspirational original styles dwindled