Double window envelope for W-2 laser and continuous forms. PLEASE NOTE: Self seal doesn't stick very well, so you'll have to use tape. So far, everyone that I've sold these to said they use tape anyway. The old gummy has yellowed and stain the edges a little bit. Envelope Size: 5-5/8 x 9-1/4 Top Window Size: 15/16 x 4 Bottom Window Size: 1-5/16 x 4