The Duax Heavy Duty Stapler is designed for versatility, using a single staple size for stapling anywhere from 2 to 170 sheets. It automatically senses the depth of the paper stack, adjusting the staple legs to the exact length needed for efficient use. Featuring a leverage system for reduced effort during stapling, this stapler also incorporates a jam-free system and flat-clinch technology for a neat finish. Additional conveniences include easy front-loading, a low-staple indicator, and a 5-year warranty for peace of mind.