Our unique May pewter penguin birthstone earrings on posts is a stylish way to personalize your penguin passion. These half inch tall, elegant, hand crafted pewter penguin earrings has an May (Emerald) birthstone between his wings. Made in the USA, each pair is individually crafted of fine pewter, and expertly detailed using traditional pewter-smithing techniques employed by Heritage Metalworks. The earrings include hypo-allergenic stainless steel post. Simply a wonderful penguin accessory for May birthday penguin lovers.