Fastens up to 20 sheets and opens for tacking flexibility Performance-driven mechanism has an inner rail for long-term stapling integrity. Positive locking latch ensures the confidence and control of a secure stapling position. All-metal, die-cast base offers durability and stability. Padded rubber bottom for comfortable handheld stapling. Uses Swingline S.F. 4 Premium staples. Swingline Staplers & Staples part of a large selection of office supplies. Swingline(R) 747(R) Series Business Stapler, Royal Blue is one of many Reduced Effort & Basic Staplers available through Office Depot. Made by Swingline.