A woman is giving instructions on how to install and adjust a saddle on a bike.  She uses a Allen key wrench to loosen up the bolt.  Then she demonstrates how she can move the saddle after she loosens it.  She hits it with her hand to push the jammed saddle.  Then she shows how to adjust the saddle by moving it back and forth.  She later demonstrates how to remove the saddle off.  She puts the new one on and then uses tools to tighten it back on.  She uses a screwdriver to tighten the screws and adjust the level.  She then shows another saddle and demonstrates how to tighten the bolts to adjust the level of the saddle.  She shows how to tighten the bolt to make sure the saddle fits snugly.