Swingline Saddle Stapler for Center Stitch and Binding Stapling (S7006155A) Durable all-metal construction for years of superior performance. Fastens to work surfaces for exceptional stability and sturdy precision performance  with a padded base that prevents marring. Staples up to 20 sheets with S.F. 4 Premium Staples. Handles full 11" x 17" sheets, 8" throat depth. Limited 1-year warranty.