500 Count #10 Security Envelopes,Peel & Seal Windowless Business Envelopes,Security Tint Pattern for Mailing of Checks, Invoices, Documents - 4 1/8 x 9 1/2 Inch - White，Horchen

This product is very very good. Excellent quality!

Thick and very easy to seal

End of year donation ask letter for our npo

These envelopes are made well. You cannot see through them.

I am a huge stickler when it comes to privacy and security. With all that's happening nowadays, the last thing you want to do is worry about envelopes, right? I used to use Meade and Staples brands for my security tint #10 but always felt like either the tint was too faint or the adhesive strip needed to be sticky enough.Well, I found an envelope that is:1. Thick (I would say close to 32lb paper)2. Excellent adhesive, and most importantly,3. It is impossible to see throughIt's THIS PRODUCT, "HORCHEN 500 Count #10 Security Envelopes,Peel & Seal Windowless Business Envelopes, Security Tint Pattern for Mailing of Checks, Invoices, Documents - 4 1/8 x 9 1/2 Inch - White" or you can just use Amazon's ASIN # "B09DG8QG55"Everything I wanted in an envelope, this has and more. As ridiculous as it was, I bought two cases, I never want to be without this brand's envelopes. I even gave some away and said, get it on Amazon, you won't regret it.I even did the ultimate test: I used a high-power LED flashlight and put a personal check inside. The light did not penetrate.You won't be sorry, trust me!!

Envelopes would be great if the stickers worked. I bought these security envelopes this past year and within no time at all did they not stick. If I was able to do ole lick and stick they would be fine but since I paid for self adhering type, I am at a loss. I need to use pieces of tape now to seal them so now spending more money on tape.

Envelopes just as advertised. Packed well. Arrived promptly.

Good quality envelope. Sturdy, not flimsy. Color is a sharp white. Only issue is that sometimes the label covering the adhesive is hard to remove, it tears easily.