Michelangelo Buonarroti (Michelangelo di Lodovico Buonarroti Simoni) was born on March 6, 1475, in Caprese, Italy. ... Florence during the Renaissance period was a vibrant arts center, an opportune locale for Michelangelo's innate talents to develop and flourish.
I'm going to assume you mean drawing software, so,
It's called the lasso, or selector.