This is an injection-plastic aircraft model kit.
From the manufacturer:
The iconic Spitfire fighter was one of the backbones of the RAF in the desperate struggle for the skies during WWII, sporting a refined design and aesthetically pleasing elliptical wing, plus the proven Rolls Royce Merlin engine. It first flew in March 1936, and some two and a half years later in August 1938 the first production Spitfires - the Mk.I - started to reach units. This Mk.I would have a vital role to play in the Battle of Britain as the RAF and Luftwaffe played out a titanic struggle for the skies, and the successful fighting off of the Luftwaffe ensured that the Spitfire earned international fame that continues even in the modern day.