Compact automatic stapler that you control! Compact design to take reliable automatic stapling wherever you need it. Jam free stapling of up to 20 sheets with Swingline® S.F.® 4 or Optima Premium Staples. Intuitive user control-youre in charge of where and when the staple goes. Built-in stack height gauge and staple placement guides. Comfortable grip material for handheld use. Convenient plug-in or battery operation. 100% performance guarantee. Limited 2-year warranty.Uses Swingline Optima Premium 35556 or SF4 35454 Staples but also takes standard staples.