With the clay in place, the stylist basically works as a sculptor, cutting away clay, adding it in other areas, smoothing it, rounding it. It's hands-on work, physically demanding, a real workout. What emerges are parts that have the exact shape of those that will eventually be stamped in steel or aluminum, cast, laid up or injection-molded. The model can be viewed from every angle, with lighting varied from dramatic show effects to direct sunlight to photo-studio shading. The clay model can be shown to executives, owners and investors, and to focus groups to determine market reaction, as an accurate representation of the eventual production piece.