Graphic 45 - Staples ATC Policy Envelopes 2.75in. X3.75in. 9 pack Red 3 each Of 3 Styles - ATC Policy Evenlopes with tie closure are 2.75 x 3.75. Each size envelope package includes two each of three designs a total of 6 per package. Policy Envelopes available in two colors: red and black. Each in four sizes: Large Regular Square and ATC sizes.