Swingline Staples, Heavy Duty, 3/8" Length, 25-45 Sheet Capacity, 210/Strip, 5000/Box, 1 Pack, Speed Pro (35465) HEAVY DUTY QUALITY  Sturdy staples provide strength and reliability. Heavy duty staples with longer legs are designed to fasten higher volumes of paper with ease. SHARP CHISEL POINT FOR FEWER JAMS  Staples with precision-engineered points are designed to cleanly pierce paper. Distinctive chisel points mean fewer frustrating jams and interruptions. SECURES 25-45 SHEETS OF PAPER  Heavy duty staples handily hold higher volumes of paper, with longer 3/8" legs that easily fasten 25-45 sheets of paper. 5,000 STAPLES  Each strip of 100 staples provides stable, continuous stapling, even when handling high volumes of paperwork. Refills are easy and convenient, with 5,000 staples in every box. WORKS WITH HEAVY DUTY STAPLERS  For use with the Swingline Speed Pro 45 Electric Stapler only (sold separately).