Hang Tab Packaging: Pins are individually packaged on paper cards inside of protective cellophane sleeves with hang tabs. Two Backing Posts: These pins have two sturdy backing posts to keep them secure. Size: 1.3" Plating: Black Nickel Enamel: Soft Enamel Backings: 2 Rubber Backings These food enamel pins are waterproof, UV resistant, and have two backing posts to keep them secure. Our unique, cute, and funny enamel pins make great point of purchase and point of sale fashion accessories for jackets, clothing, fitted hats, backpacks, purses, and bags. Common uses include birthday gifts, stocking stuffers, and collectibles. Also referred to as fitted hat pins, lapel pins, and music festival pins.