Resin, a lot of heavy resin. This arena is a pretty anonymous and huge ring with few decorative elements that felts a lack of stairs and terraces. The exterior part reminds me of the railway buttresses (maybe the maker utilised some sheets for railway modelling to cast it). The interiors are more Medieval oriented. From this description it is clear that I do not like this arena so much? However, it is still a impressive-looking arena. You can find it here.