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
Kitten heel by teenage girls, who may be considered too young for high heels. Kitten heels are shoes with a tapered heel of approximately 2.5 to 5 centimeters (1–2 in) in height. They are on the shorter end of stiletto shoes, which can have heels as tall as 12.5 centimeters (5 in). Kitten heels were introduced in the late 1950s as formal fashion attire for young adolescent girls, as higher heels would have been considered unseemly for girls as young as thirteen because of, for instance, unease of walk. They were sometimes referred to as "trainer heels" in the US, indicating their