HASCO TAG COMPANY has been manufacturing metal and plastic identification equipment for over 100 years. Hasco invented the world's first self-piercing & self-locking metal ear tags, and as such is committed to the belief in providing our customers with the best products in our industry at money saving costs and on time shipments. Please take a moment to learn more about our company and the products we provide. If you have any questions, please contact us. We look forward to serving your identification needs!