The Novus B56 XL Heavy Duty Long Arm stapler is designed for high-volume stapling of up to 170 sheets with minimal effort. It features an anti-blocking system to prevent jams, a 9.75" throat depth for stapling booklets, and a bypass system that prevents staple overlap when stapling fewer sheets. This stapler is German engineered and works best when paired with Novus 23-gauge premium staples. JAM PROTECTION- The innovative Anti-Blocking System (ABS) prevents the possibility of a jam and wrestling with your documents when they get stuck to the stapler. A dual staple guide further ensures trouble-free performance by providing even pressure on both staple legs until they clinch your documents. CREATE BOOKLETS- With a 9.75" stapling depth, the B56 XL makes saddle stitches up to 170 sheets quickly and easily. The adjustable depth guide ensures each document is stapled in the perfect position every time. CONVENIENCE- The staple bypass system offers the convenience of using larger staples on smaller projects. For stability, this stapler includes non-slip rubber feet to prevent it from moving while stapling. PREMIUM STAPLES- Novus Heavy Duty Staplers work flawlessly when paired with Novus 23-gauge Premium Staples. These thicker gauge staples guarantee your stapler performs as designed.