The product is a pack of 50 W-2 envelopes designed for 4-up tax forms, featuring a self-seal function for security. These white envelopes are sized at 9″ x 5-5/8″ and are made in the United States by the Sustainable Forestry Initiative-Duty Mark brand. Perfect for businesses or individuals needing to securely send tax forms, these envelopes offer a convenient and reliable solution for handling and shipping paperwork.