In fact, these Spider-Man and Iron Man sets appear to be the first where Lego has specifically referred to them as busts.

A new line of Lego Marvel mini-busts has been unveiled, with the first two characters being Iron Spider-Man and Iron Man MK4.

Two new hero sets are on the way! These busts of Tony's Iron Man MK4 armor and Peter's Iron Spider suit are packed with fun ...

A new line of Lego Marvel ... being Iron Spider-Man and Iron Man MK4. It’s been a rough few years for the Marvel Cinematic Universe, as while it’s still had some big hits at the cinema ...