Indoor Recess enamel pins are made of steel-plated zinc and enamel resin. Our custom pin backs bring a little touch of whimsy that only you will be privy to. Fasten to any cloth surface. Not recommended for leather or plastic. Wear them with pride, and if you’re keeping it on a jacket or bag, be sure to periodically check the fasteners to make sure it’s extra secure. Indoor Recess was born in Brooklyn. We love you.