This pin featuring the Hulk is part of the Avengers monorail set. Hulk has his hand out in front of him as if to grab something. This pin is part of a five piece set.
On the back of the pin is silver with mickey heads. On the reverse of the pin is written "ⒸMARVEL MADE IN CHINA LIMITED RELEASE P389-7448-2-13347 ©Disney". The rear of the pin has one post and three nubs.