Amazon Basics Security Self-Seal Mailing Envelope, White, 6 3/4, 100-Pack

#10 Security Tinted Self-Seal Envelopes - No Window, Size 4-1/8 X 9-1/2 Inches - White - 24 LB - 100 Count (34100)

Quality Park #10 Self-Seal Security Envelopes, Security Tint and Pattern, Redi-Strip Closure, 24-lb White Wove, 4-1/8" x 9-1/2", 100/Box (QUA69117)

Mailing Envelopes Self Seal - #10 Security White Letter Businesses Envelopes -100 Peel and Seal Tinted Windowless # 10 Envelope - Printer Friendly - Self Stick Bulk Envelops

USPS US Flag Forever Postage Stamps - Book of 20

AmazonBasics #9 Envelopes with Peel & Seal, Security Tinted, 100-Pack

USPS Strips of 10 Forever Stamps

Scotch Magic Tape, Numerous Applications, Invisible, Cuts Cleanly, Engineered for Office and Home Use, 3/4 x 1000 Inches, Boxed, 4 Rolls (810K4)

100 No. 10 Self Seal Security Envelopes - Designed for Secure Mailing - Security Tinted with Printer Friendly Design - Number 10 Size 4 1/8 x 9 ½ Inch (100 Pack)

AmazonBasics Multipurpose Copy Printer Paper - White, 8.5 x 11 Inches, 1 Ream (500 Sheets)

USPS Us-Flag-Forever-Stamps-40 US Flag Forever Stamps - 40 Stamps (Two Books of 20) Packaging May Vary, Blue Red White