The Kit
This is one in a series of architectural models that Italeri is producing. Kudos to them for doing some really different things in modeling, with their Leonardo Da Vinci line and now this architectural one.
No number of parts is given, but my guess is around 60 or so, most of those being the columns at the top. The parts are sharply molded in a light tan plastic with good detail. Included is a sheet of images of statues that are cut out and glued to the interior of the outer wall parts so that they show through the arches, which is a neat effect. You also get a few gladiators, a lion and what I think is a bear, but in 1/500 scale, they are pretty tiny and painting them is a challenge. You get a booklet about the colosseum with its history in Italian and English and the instructions are in this booklet. The history is pretty extensive and makes the model more interesting.