4 up W-2 with current year instructions on the back, one copy per employee. Current Year employee instructions print on the right copies as you view the back, pictures of how to attach to tax return print on the left. Order by the number of sheets needed. Compatible Envelopes: 4UPDWENV05 (Moisture Seal) | 4UPDWENVS05 (Self Seal) | 4UPDWENVSTE (Self Seal Tamper Evident)Specifications:Construction: Laser BlankForm: W-2Form Name: Wage and Tax StatementPages: 1Size: 8 1/2" x 11"Forms /Sheet: 4up Ver 1Horizontal Perforation: 5 1/2"Vertical Perforation: 4 1/4"Other: Instructions