The frosted detail plastic that this item is produced in has a bit of a rough surface that needs to be sanded smooth before painting. To facilitate ease of sanding, we have designed this wing in easy-to-sand sections that can be assembled before or after painting, whichever you chose. Be careful not to break off the pegs that fit the pieces together. You may need to slightly sand them so that they do not get stuck if you do any test fitting. Make sure you separate the main wing parts so that the pegs remain on the left and right side portions so they can be inserted into the center section (and through the middle wing plates). This is important for a properly aligned assembly.
Decals for this car are available here: http://www.indycals.net/decals/indy/72sunocomclaren.html