The Swingline Optima Desktop Stapler SWI87801 features a die-cast, all-metal design that ensures maximum durability and performance. This stapler is capable of stapling up to 25 sheets of 20 lb. paper and offers a 25 percent greater capacity than standard desktop staplers when using S.F. 4 staples. Additionally, it provides jam-free performance for reliable use in any office setting.