This pin belongs to a Loungefly blind box of Winnie the Pooh characters as backpacks. This pin specifically is for an Eeyore inspired backpack. It is a blue/green backpack with black straps. The front pocket is outlined as Eeyore's nose. On the sides are long ears and the top has a bush of black hair like Eeyore. Set #151889, Piglet #141048, Roo #151890, Owl #151891, Pooh #151892, Eeyore #151893, Tigger #151894
The back of the pin is black metal, single post with nubs, Loungefly crown logo debossed, Disney script, trademarked Disney Based on the "Winnie the Pooh" works by A.A. Milne and E.H. Shepard, Made in China, and FAC-064538-20207.