No. 9 envelopes are compatible with standard, letter-size, computer-generated invoices and statements. Two poly windows allow return and mailing addresses to be displayed from contents. The 1-3/16" x 3-1/2" top window is positioned 3/8" from the left and 2" from the bottom. The 1" x 4" bottom window is positioned 3/8" from the left and 1/2" from the bottom. White wove, 24 lb. envelopes also have an inside security tint for privacy and a gum closure to seal the envelope securely.
| Brand Name | Quality Park |
| Closure Type | Gummed |
| Color | White |
| Country of origin | United States |
| Features | Self-adhesive |
| Features | Security Tint |
| Mailer/Envelope Classification | #9 |
| Mailer/Envelope Length | 3 7/8" |
| Mailer/Envelope Size | 3 7/8" x 8 7/8" |
| Mailer/Envelope Type | Double Window |
| Mailer/Envelope Weight | 24 lb |
| Mailer/Envelope Width | 8 7/8" |
| Manufacturer | Quality Park Products |
| Manufacturer Part Number | 24524 |
| Manufacturer Website Address | http://www.qualitypark.com |
| Material | Wove |
| Packaged Quantity | 500 / Box |
| Product Name | Double Window Gum Closure Envelopes |
| Product Type | Envelope |
| Recycled | No |
| Seam | Contemporary |
| Window Height | 3.50" |
| Window Location | Top Left |
| Window Location | Bottom Left |
| Window Width | 1.25" |