LEGO Marvel Constraction is a line of LEGO sets that was released as part of the LEGO Marvel Super Heroes theme. The sets feature buildable action figures known as constraction figures, which are made up of a combination of LEGO bricks and other elements. The constraction figures are highly poseable and can be customized with a variety of different weapons and accessories. The LEGO Marvel Constraction sets include a variety of different characters from the Marvel Comics universe, such as Spider-Man, Captain America, and Iron Man.
The LEGO Marvel Super Heroes theme is based on the characters created by Marvel Comics. Originally Marvel was a subtheme of the LEGO Super Heroes theme but was later separated into its own theme. Over time, sets in the Marvel Super Heroes theme includes most characters and situations released to the marvel Universe from films to the comics to TV series.