Size: 1.6" Backings: 2 rubber backings. Enamel: soft enamel. Plating: black metal. All pins come with retail-ready packaging: Pins are attached to a paper backing card inside a cellophane sleeve with optional hang tabs. These enamel pins are waterproof, UV resistant, and have two backing posts to keep them secure. Our cute and funny enamel pins make great point of purchase and point of sale fashion accessories for jackets, fitted hats, backpacks, purses, and any other fabrics that need to be personalized. Common uses include birthday gifts, stocking stuffers, and collectibles.