2-Window Redi-Seal Security-Tinted Envelope, #10, 4 1/8 x 9 1/2, White, 500/Box

Self-stick Redi-Seal closure requires no moisture to seal. Double flap design keeps envelope open until you choose to seal it. Wove finish adds a professional touch. Envelope Size: 4 1/8 x 9 1/2; Envelope/Mailer Type: Business/Trade; Closure: Redi-Seal; Trade Size: #10.

Price: £ 81.39 from Zuma Office Supply US