To provide an easy-to-use jet operating mechanism by simplifying the adjustment of the discharge and jetting range of the mechanism.

A main body 10 with outlet holes 14a and 14b for the contents formed is engaged with a stem 30, and a rotary member 20 is attached to an outlet opening adjacent to the outlet holes. The positional relation between a protrusion 23a on the inner face of the rotary member 20 and the two outlet holes 14a and 14b of the main body is set by rotating an operating lever 21a so that (b) only one of the holes is opened, (c) both holes are opened, and (d) both holes are closed. Consequently, the discharge and jetting range are stepwise adjusted, The contents are never jetted outward even by misoperation when (d) both holes are closed. Further, since an annular ring 30a to be engaged with the inner periphery 12a of an inlet opening 12 of the main body 10 is provided on the outer periphery of the stem 30, the contents are never discharged from between both.