Blue Summit Supplies 500 Number 10 Self Seal Envelopes, Business Letter Size, Security Tint

Blue Summit Supplies 500 Number 10 Envelopes Self Seal - Number 10 Business Envelopes Letter Size - Security Tint - Flip and Seal Flap - 4 1/8 x 9 1/2-500 Count

Blue Summit Supplies 500 Number 10 Self Seal Envelopes, Business Letter Size, Security Tint

Key Features

• ✅ Designed for secure everyday home and business mailings, our windowless number 10 security envelopes are a perfect fit for standard 8.5'' x 11'' paper sizes and other folded letter or legal size documents.
• ✅ Provides complete mail security with no need to worry about others seeing your documents, thanks to our dark black security tint lining which completely hides your confidential mail.
• ✅ Save time with easy to use flip and seal self-seal design; With no need for licking or moistening, our self seal design allows for sending hundreds of invoices quickly and easily and is guaranteed to stay sealed with no need for tape or glue sticks.
• ✅ Quickly stuff multiple pieces of business mail into our wide opening #10 security envelope design with large flip-and-seal opening. Smaller #9 or #8 return envelopes will easily fit inside so you can get your invoices paid quicker.
• ✅ Create a professional look for your mail all the way to its destination thanks to our durable 24 white wove paper and smooth front envelope with no windows

Shipping & Guarantees

• ✅ FREE standard shipping within the United States (3–6 business days)
• ✅ 100% money-back guarantee for lost or damaged items
• ✅ Secure checkout with encrypted payment processing
• ✅ Shipping via UPS, FedEx, and USPS
• ✅ Ships to lower 48 states only (no PO Boxes / APO / FPO)

Returns

• ✅ 30-day hassle-free returns
• ✅ Items must be unused and in original packaging
• ✅ Full refund if item is not delivered
• ✅ Guaranteed delivery within 6–7 business days

Payment Methods

✅ Credit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay

Customer Support

✅ Questions? Contact us at Support@GiftAbay.com
We respond within 24 hours on business days.