alright smart ass, I was being a nice guy and helping people out...if you know so fucking much why don't you describe it and the rest of em while your at it. Dick.
Okay.
The hamstring is comprised of essentially three different muscles. Medially is the semimembranosous, and laterally is the semitendonosis, and biceps femoris.
These muscles cross both the knee joint, and pelvis, requiring activation at both areas for complete stretching of the fascial tissue surrounding the contractile tissue of the muscles.
To properly stretch the hamstrings, the knee must be relatively near lockout, and the lumbar and sacral portions of the spine must be contracted, forming an arch of the lower back.
A stretch of both legs can be achieved with both feet facing forward evenly, and bending over at the waist. A slight bend in the knees should be maintained to aid in prevention of joint damage, and the lower back should be arched, to actively stretch the proximal portion of the hamstring muscles.