These parts are the keycaps for the white MacBook (13-inch, Late 2006, and Mid 2007). They will not work with the other models. If your keyboard does not have a num-lock light on the F6 key, these keycaps are WRONG. In most cases, Small caps are $2.00; Medium (Caps Lock, Shift, Tab, and Return) are $5.00 and include the torsion bar; and the space bar (w/torsion bar) is $10.00. Scissors mechanisms (white parts under keycap) for these keyboards are available here.