if your talking about the little white things then i can help you on how to replace the keys. The small white piece goes on first, with the large end hooking under the single metal piece on the left. The other larger piece slides under the two metal pieces on the right (not sure how to describe but its the side closest to the small side of the center opening lol) Then you have to pull the small piece through the center of the big piece until the two tabs come through. Then you take the key and attach it on the right side to the end of the small white piece...then carefully push down the left side so it attaches to the left hand tabs of the big piece(make sure both sides attach)...then finally push the right side down again until it clicks twice onto the left side of the big piece. Hopefully that made sense, i had to put 90% of my keys back on after my 2 yr old got ahold of it