240 PCS Tamper Evident Seals 60 x 25 mm Tamper Tape Tamper Proof Stickers Total Transfer Tamper Tamper Evident Tape Security Tape (Red)

Soooo I put these over the USB ports on my lab computers to make sure no one was plugging in USBs. It was a crazy time. Anyways, they work good and no one used their own malicious USB that day. lol

These stickers work well, they show whether a box or envelope has been opened. Even on a white package, they tamper evidence is white and glossy, visible as light shifts over the letters.

I got these to test and report my findings and tbh I was not overly impressed. You get a LOT (like hundreds) of labels, and they each have numbers, which is nice so that each label can be traced and tracked. But it just liked like cheap plastic labels. I was not sure what to expect, so I sealed the cardboard envelope that these came in and took out the felt-tip "Sharpie" (-like) pen and signed today's date and a scribble that resembled my name. And as it is 2 a.m. I stared at it as if its would somehow do tricks or perform for me. I figured I had wasted my time and decided to open the cardboard envelope — and that is where the magic happened. It turns out that not ALL of the tape is actually adhesive. The white letters OPENVOID OPENVOID OPENVOID OPENVOID (and so on) stick to BOTH surfaces, and even though I tried to seal it back up (I would make a lousy criminal it turns out, which is too bad because I could use the money) you can't seal it a second time. I think what they do is "print" the white letters on the label but there is no adhesive on it. It feels slippery and non-tacky once it is open. Then there is some special manufacturing method (probably explained on the Internet) whereby the letters "split" and stick to both sides. Who knows. it's probably magic. But wow, these are really good if you ever want to make damned sure that you know if anyone has opened your (whatever you slap a label on). I get it now, why you would want to write a date and a signature on the seal, as well as have a number. You get a LOT of labels. Now I need a hundred or so things to seal up. Yeah, this really works. oh yeah, I tested the white ones. Maybe the other colors are more dramatic. But I am sold. You all be too. This is really good — if you need this kind of stuff.

These have been an excellent addition to my security setup both at home and in the office. They’re easy to apply and clearly show if anything’s been disturbed, giving me peace of mind when it comes to protecting valuables and sensitive items. The adhesive is strong, and the visible evidence left behind if tampered with is unmistakable. A smart, low-cost layer of protection I now rely on daily!

I was looking tape that lets you know if someone removed the tape and tried to reseal and does the job. It just marks the item if you remove the tape... so you can't reuse same piece of tape. So that part works. However description isn't fully right; it's not tamper proof, since you can just put a new piece of tape on top to hide the old one you removed. I guess maybe this makes it easier to sell for search terms? Comes with a quality permanent marker that's has a fine and thicker points on two ends. Good product just mindful it's just tape that designed that you can't reuse old one to reseal.

What I like most about these tamper-evident seals is the added space for date and signature, which brings an extra level of accountability on top of the sequential numbering. It's especially useful when leaving sealed equipment or products with a third party - anyone can quickly see who was responsible and when it was last checked. I’ve used these for items that need to remain untouched during rentals or storage, and they’ve worked exactly as intended.

These are perfect if you run a business selling electronics or similar, to tell if a device has been tampered with. But they're useful for all sorts of other stuff too, if even only just as a deterrent to somebody.

I work with tamper evident seals every day on equipment that has to be secured. While I wouldn't recommend these in a high security environment, I can confidently say they work just as well, if not better, than some of the official tamper evident tape from security companies used in the government. The seals come in strips of 6 sequentially numbered. Once applied, if they're removed they leave a voided message on the tape. The left over residue on whatever they were placed on is easily rubbed off, which is nice when you're using these to secure the same item multiple times. They are slightly less thick than the tamper tape I'm familiar with, which works to their advantage as there's less play to give on the corners to try to peal these off without voiding the seal. Overall, these are perfect for banker bags or anything else that needs to be tamper evident. On an unrelated note, these are not "tamper proof" but "tamper evident" nor are they stickers. Kercan would probably sell these better if they were renamed to "Tamper Evident Seals" or "Tamper Tape" as they're called in the security world.