bobthib was partly correct in his identification of your parts. The screws are most probably for installing your front and rear reflectors as is the black rubber strip (shim). The elbow piece is indeed a cable routing noodle for the front brake. There should be a hanger bracket above the headset where it fits into. The 4 odd shaped pieces are brake lever shims to adjust the lever reach for smaller hands so you may not need them. They fit in between the lever and the upper body housing. They are right and left specific and two sizes. To install them simply pull the brake lever and insert them in the open space. You will most likely have to then readjust your brake cable. I Hope this helps.