A heel is the bottom, back part of a shoe or boot that provides elevation. The styling and construction of a heel may vary (i.e., stacked, stilletto, spiked, sculptured, kitten).
About Stilettos:
Stilettos are shoes with a long, narrow heel that measures about 3 inches or more in height. Stiletto heels are also referred to as spiked heels.
Carlos by Carlos Santana High Heel Womens Womens Stilettos