While these were large enough for mailing our checks which is why I bought them if you need to mail any regular sized papers (8.1/2x11) with the checks (for example sales tax statements or extended remits) you must fold them several times to make them fit. Time consuming and messy. Several of the envelopes were missing the film over the windows and had to be thrown away also. I order a lot from Staples and am usually pleased with everything but not buying these again.
These envelopes are awesome! They are rectangular AND they are white AND gummed. What more could anyone ask? Thank you Staples for asking 20 times for the review. You are just as awesome as the rectangular white envelopes.
We purchase these all the time! The windows are placed perfectly for my statement settings and the windows do not easily punch out. Seals well and the security lines work well to keep any sensitive info safe from viewing eyes