It must be one of Rob's recast heads. I think you're supposed to get some super glue and very fine sand paper. Painting the head lasers black is optional, but recommended to match the stock yamato vf-1s heads. I do not know what paint to use. You may ask other members here. After deciding to paint the head lasers or not, glue the two halves together. Do not wait for the glue to dry. Start sanding (maybe a few strokes) to cover the gap between the newly glued head (the resin dust will fill in the gap). Then glue on the plastic visor. I think that's it. I may be mistaken. Wait until more people agree or disagree .