The Swingline Optima 45 Electric Stapler offers users complete control in one quiet stapler with an innovative option that allows for toggling between manual and automatic operation. Able to staple up to 45 sheets of 20 pound paper with Optima premium staples, this versatile, dual power stapler operates with AC adapter (included). A low staple indicator alerts the user when it needs to be refilled, saving time and preventing annoying work delays. Swingline, a leading brand in workspace tools for the business, home and mobile office for over 80 years continues to introduce new staplers, sharpeners, punches and trimmers that solve common workplace frustrations and increase productivity. With unmatched quality, durability and performance, Swingline products are truly designed for the way you work!