This pin is a part of the Magical Mystery Collection.
This pin shows Mike Wazowski from Monsters, Inc.. He looks stout and child-like with his regular character outfit and one big eye.
The back of the pin is dirty brass with mickey heads. Written on the back of the pin is “Magic Mystery Pin Series 7 ©Disney/Pixar Made in China ” On the back of the pin there is one post and two nubs.