Four LARGE 2.25" (58mm) buttons/pins/badges to encourage others around you music is fantastic and can be a lot of fun. Has helped to uplift spirits around the world! Perfect gift for: parties, workplaces, hospitals, school bags, office functions, winter coats, sweaters, workplace flair, public demonstrations and everything in between. Especially great if you'd like it to be known that you love and play music whenever possible.