15 is the answer! <span>Leonardo da Vinci (baptised Leonardo di ser Piero da Vinci) ( pronunciation (help. info)), (April </span>15<span>, </span>1452<span> – May 2, 1519) was one of the leading artists of the High Latt. </span>Fifteen<span> works are generally attributed either in whole or in large part to him.</span>
I'm going to assume you mean drawing software, so,
It's called the lasso, or selector.
