The knob (while not pictured) is included. Note however that the knob included with these is a gloss finish knob, not the matte black found on other valves.
Also found in the Fiorenzato 'Piazza San Marco' and the Reneka 'Mosaic' models.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.