Supremex T4 envelopes are ideal for making standard income tax forms and more. Security Artline. Open Side. 5-3/4" x 9". Top Window Size: 1" x 3". Top Window Placement: 4-5/16" from bottom. Bottom Window Size: 1-15/16" x 4-1/4". Bottom Window Placement: 1-1/4" from bottom. 24 lb. 25/pkg.
