ITYSTC6 - Itoya Etona Heavy-Duty Staple Cassette 5 Itoya 1/4 inch interchangeable staple cassettes per box Work with Switch XPRESS ST-2, Switch ST-3, Switch Ultra- ST-5, and Etona EC-3 stapler Staples 2-30 sheets of paper at once for commercial, clerical, personal, educational, industrial, and institutional use. Precision surgical-grade metal staples can handle any paper-based job Extremely efficient patented design for heavy duty staple jobs Made in Japan