The envelopes are a good size it's just that it needs more tape on the back of it so that if the letter goes out of state it won't get opened up by the time that it arrives to where it's going. When I use these envelopes and they are going out of state I put some tape on the back of the envelope.
Like that these are easy and self adhesive. But I have to monitor my printer feed when printing on them as they tend to jam up in the printer feeders. If you use labels or hand write address' these envelopes are great.