Martin Yale P6200 Automatic Desktop Folder, Folds 1-3 Sheets of 20-24 Pound Bond in Seconds, Folds up To 30 Letters a Minute, Up To 1800 Sheets/hr, for Use with 8 1/2" x 11" Paper, Accepts Stapled Sets Hand-fed machine folds 1 to 3 sheets in seconds; Simply drop the sheet into the top of the folder and the folded sheet will be returned Creates a letter fold to fit a standard size business envelope Folds up to 30 letters a minute, 1800 sheets per hour For use with 8 1/2 x 11 Inches, 20-24 lb. bond Accepts stapled sets. Please refer the User Manual before use.