Package Includes: 50 pieces sage green #10 Envelopes. Size: #10 Envelope size 9 1/2 x 4 1/8 Inches, This letter envelope is ideal for commercial applications, wedding announcements, invoices mailing, birthdays, baby showers etc. Quality: The #10 envelopes are made of 110GSM paper, thick and durable, excellent sealing performance to meet your daily needs. Easy to Use: Each envelope comes with super strong self-sealing tape, just remove the protective strip, press and seal. Smooth surface and easy to write. More Choices: There are more quantities and colors of envelopes for you to choose from. If you have any questions about our products, please feel free to contact us. We are glad to help you. 50 Pack #10 Business Envelopes, Self Seal Standard Sage Green Envelopes for Secure Business & Legal Mailing, Office, Checks, Letter, Invoices, 4 1/8 x 9 1/2 Inches