120pcs Total Transfer Tamper Evident Security Warranty Void Seals/Stickers High Security Tamper for Reusable Package(1 x 3.35Inches,White)

So, they are really too small for what I needed, but I ran out of time and had no choice. I needed to secure documents in plastc boxes. The labels barely made it from the tops' handles to the bottom boxes. So, I also used packing tape to hold the tops on to prevent accidental dislodgement of the tops which would have broken the seals. On 1 of the boxes, my hand slipped and I ended up putting a label in the wrong spot, so I tried to remove it, which was a bad idea, because that left not only a yellow tape which can come off, but also it left sticky residue behind, which I could rub off the box (so much for security), but not off my fingers!I had to use acetone to remove it from my thumb.However, if you're using it on paper or cardboard, you'll never get it off! Which is what it's designed for!

Label will show when an item has been tampered. When the maker says "high residue" they are not kidding !!

This is the second set I purchased. This set the security sticker seemed to come off so it was not the normal all red when I put it on the envelope.Still does the job though.

very good

Great

100%.. Perfect

Keep a simple security on things.

I think some of my electricians are opening my calibrators to see how they work and I really didn’t appreciate that. After I put these on I haven’t had an issue