I build this Lego recently, the total amount of pieces it contains is 635. This piece has several attractions to it, the first being that this Lego is of Tony Stark with 33 armor pieces that you place onto Tony Stark to create Iron-Man! Articulation remains more or less the same with the armor on, adding to the play factor to this piece. It stands approximately 14 inches tall.
About this creation
Since you place the armor on body, you can also mix and match armor bits with the body underneath as well. For example you could place the armor for only one arm and leave the rest of the figure unarmored, and vice versa.
The face plate lifts up to reveal Tony's face
The Right gauntlet rotates, mimicking the shield as seen in the first film
The Left gauntlet reveals the arm missile as seen in the first film
The flaps on the back also rotate up to become the shoulder missiles (missiles also included)
There are air flaps on both the back and the back of the lower legs