JAM Paper & Envelope Brite Hue Lime Green #10 Window Envelopes are made out of smooth high quality 24lb paper. In this pack there is a total of 25 envelopes. Each one measures 4 1/8 x 9 1/2 inches in size. With commercial style openings and reliable gum closures these envelopes are certain to keep the contents placed inside of them secure as they travel through the mail. In the front bottom left corner each one of these envelopes features a clear cellophane rectangle shaped window designed to display the outgoing addresses on the business letters placed within. These envelopes feature a vibrant ultra lime green color that cannot go unnoticed! Size: 4 1/8in x 9 1/2in | Color: Brite Hue Lime Green | Quantity: 25/pack