This pin is part of a 6 pin set from Loungefly called the Disney Characters hat. This cap is specifically for Pluto. Pluto's ears dangle on the sides of the cap. He is sticking his tongue out. Set #150583, Donald #148524, Pluto #150585, Dale #150586, Daisy #150587, Goofy #150588, Pooh #150589.
The back of the pin is black metal. It has the Loungefly crown logo debossed. One post and two nubs. Fac is FAC-078722-21270