The ETONA HDC-8 5/16" Staple Cassettes in Yellow are designed specifically for use with EC-3 staplers. Made in Japan, these high-quality stapler accessories are color-coded for easy identification and organization. The etona brand ensures reliability and durability, providing users with a consistent and efficient stapling experience. Ideal for office and industrial settings, these staple cassettes are a practical and essential addition to any workspace.