Please see all pictures. From a smoke-free home. If you have any questions, please ask 🙂 The Universal #10 Window Business Envelope in White Wove is a versatile product designed for professional use. With a box containing 500 envelopes, this high-quality envelope is perfect for sending business documents and letters. The #10 size and window feature make it easy to fold and address, while the durable construction ensures your important documents are protected in transit. The Universal brand and model (UNV35211) guarantee reliability and consistency in your mailing needs.