Use this standard self-adhesive envelope with any traditional W-2 form, from anywhere! This envelope is 5 3/4" x 8 3/4" (due to W-2 format change in 2001). The security tint and cellophane windows ensure the privacy of information. All W-2 envelopes are constructed of 24# envelope stock. (A traditional W-2 form is 2-up with same form on top and bottom