Rounded electric stapler fastens 16 sheets of 20 lb. paper (20 sheets of 16 lb. paper) at a time. Throat depth is 2″. Stapler holds half strip (105 staples) of standard 1/4″ staples. Nonskid bottom keeps stapler in place. U.L. listed. 16 Sheets Capacity – 105 Staples Capacity – 1/4″ Staple Size – Putty