The following window positions indicate the range available. Window position measurements below are in millimetres.
envelope_windows_1

Position No.1

Available in Wallet or Banker

Sizes: 11B, 12 ¾, DL & DLX

envelope_windows_3

Position No.3

Available in Wallet or Banker

Sizes: DL

envelope_windows_4

Position No.4

Available in Wallet

Sizes: C6

envelope_windows_5b

Position No.5

Available in Pocket

Sizes: C4 Booklet mailer 229 x 324

envelope_windows_6

Position No.6

Available in Wallet or Banker

Sizes: DL & DLX

envelope_windows_7

Position No.7

Available in Wallet

Sizes: C5 booklet mailer standard window

envelope_windows_8

Position No.8

Available in Wallet or Banker

Sizes: C5 booklet mailer