Sewing Machine

   The Tension Disk:. The Tension Disk is never to be touched by anyone including yourself

Hand Wheel :

This has direct contact with the needle.

You must always turn the hand wheel

towards you.

      

                          Pattern Selector:

      The Pattern selector is to adjust

    The different patterns you choose.

Stitch Length Selector:

It would be  controlling the length

of the stitch.