Handle

noun

1. The part of an object which is (designed to be) held in the hand when used or moved.
2. An instrument for effecting a purpose (either literally or figuratively); a tool, or an opportunity or pretext.
3. The gross amount of wagering within a given period of time or for a given event at one of more establishments.

   "The daily handle of a Las Vegas casino is typically millions of dollars."

4. The tactile qualities of a fabric, e.g., softness, firmness, elasticity, fineness, resilience, and other qualities perceived by touch.
5. A name, nickname or pseudonym.