The OEM Swingline High Capacity Heavy Duty Stapler SWI90002 is designed for maximum capacity and exceptional durability, capable of stapling up to 210 sheets of 20 lb. paper. Its all-metal die-cast construction ensures years of reliable performance. The stapler features a precision adjustment guide for perfect alignments and a 2-1/2" throat depth for enhanced control and flexibility. Additionally, it includes soft feel materials on the handle for added comfort and an easy front-end jam-clearing mechanism. This stapler uses Swingline series 353XX heavy-duty staples in various sizes.