Preprinted Pressure Seal W2 Form. Each 8 1/2" x 14" sheet contains employee copies B/C/2/2 perforated horizontally and blank "envelope" portion. Eccentric Z fold allows you to print forms and mailing information on the same side, no need to duplex. Fold and seal with your pressure seal equipment, then mail - no envelope required. Check your software for compatibility. Order by number of sheets.