Item Number 1970 (DWU4) Use this envelope with item B4PERF05. Order one envelope for all your W-2 and 1099 needs. The security tint and cellophane windows ensure the privacy of information. Envelope Size: 5 5/8 x 8 3/4 24 pound White Wove paper Top Window Size: 2 1/2 x 9/16 Top Window Plcement: 1/2 from left, 3 11/16 from bottom Bottom Window Size: 2 1/2 x 9/16 Bottom Window Placement: 3 1/16 from left, 1 1/2 from bottom Latex Seal closure Long flap opening Black ink imprint reads IMPORTANT TAX DOCUMENT ENCLOSED