Heavy-duty staples feature a thicker-gauge steel that enhances its durability to keep your papers tightly bound together. Precision-formed construction delivers consistent performance to minimize jams. Staples are designed for the Novus stapler (sold separately).Heavy-duty staples feature a thicker-gauge steel that enhances its durability to keep your papers tightly bound together. Precision-formed construction delivers consistent performance to minimize jams. Staples are designed for the Novus stapler (sold separately).