1100pcs 0.39 inch QC Passed Tamper Proof Stickers Silver High Security Tamper Evident Warranty Void Hologram Labels w/Unique Sequential Serial Numbering

I use these on computer parts I sell. The size is small and works well. The hold well and once applied they will not come off without being damaged so they do what you want them to. I'm been using them for several years. Very happy with everything about them.

So I bought these because I run a small retro gaming business and noticed a few of my Nintendo nes coming back claiming “they don’t work” when I knew they worked. I found out some people were buying my nes consoles then swapping the working components inside the nes and putting it into their broken nes and then putting their broken components into my working one. Well the place I sell said I need prof this is happening, well, these stickers did the trick, I would fix an nes and put about 8 stickers hidden all over the inside of the nes on different components where I knew no one would look and took photos of it and I had another return nes about 3 weeks later and what do you know, they swapped the insides, I had all the proof I needed now to show the company I sell threw that I was being scammed. These stickers work amazing!

I was able to get continuity probing the sticker side of these labels. Be careful when using on circuit boards. Also adhesion to textured materials doesnt really work. The stickers just fall off. I'll try to use the ones I bought, but I will not be purchasing these again.

Beautiful to the eye and makes my project boxes look so professional.

I would not recommend this product to anyone who requires QC tracking on individual products. I needed these for quality tracking on individual products where the customer can relay the QC number and we can pull the original manufacturing data from our database. However, as you can see in my picture, it is too easy to confuse a 5 and a 6 with their font and printing quality. It’s actually hard to tell the difference even when you know their printed order on the sticker sheet. Individually on a single product there would be no way for a customer to reliably convey the correct number.

Put them on items for online sale and the avg scammer will not know them

Awesome product! Just as described

Sticks only to basic surfaces. If glossy plastic or semi glazed type. Then these are useless.