____________, which resemble gears, have three or more positions and are located just below the ring handle of an instrument so that the instrument can be locked in a particular position.

Question

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The Answer of ____________, which resemble gears, have three or more positions and are located just below the ring handle of an instrument so that the instrument can be locked in a particular position.

____________, Which Resemble Gears, Have Three or More Positions and Are