The first StandUp ever using patented SuperFlatClinchï¿½ technology. This system reduces paper stacks by 40%. Ergonomic design is comfortable even for small hands. Standing design saves valuable desktop space. Opens for tacking. All metal construction inside for precision with rubber base. Opens for tacking. 3 3/8" throat depth. Top loads a full strip of 1/4" standard staples. Stapler Type: Flat-Clinch Standup; Staple Capacity: Full Strip; Size of Staple Used: 1/4 in; Type of Staple Used: Standard.