1. Metal button badge 2. Pin on back 3. Rustless 4. Printed on paper 5. Various ... on promotion, we have various kinds and sizes, such as1. round (25mm, 32mm, 44mm, 50mm, 58mm, 65mm, 75mm etc),2. square ... machine to make products of different sizes, this size includes pin badges, bottle openers, mirrors, key chains etc. metal pin badge