Plastic Security Padlock Seals Numbered Tamper Proof Disposable Self-Locking Plastic Medical Tags (Pack of 100 PCS) (Blue)

They do just as they intended to. Serial numbers are easy to read and they click in well. Great value for the amount of money. They last a long time and hold up, but can still be broken easily in case of emergency.

Not sure what all there is to say. They are secure, arre small enough for my needs, and a good price.

Small enough to be used on luggage for a quick indication of un-authorized opening

Been using these for making my traveling tool case tamper proof when traveling. Easy to use and instal, the numbers don’t wear off, and the seal is firm but can easily be broken by hand when needed to be removed. 5 stars

It's my second order of these locks, we used them as crash cart locks. Definitely recommend.

They lock but are difficult to pop back open when done

Great for the crash carts

It seems as though entrance was gained as a fine marker was used to identify serial number ending in 803.I tried to glue the top of the insert area to completely seal the "probe" into the "clasp" but the glue was not ableto cure in the extreme climate conditions and it permitted the clasp to be opened without impacting the tip which would normally break had nothing extra having been used!I was getting the idea that somehow the device could be bypassed undetected. I might just be overly worried, but I believe with enough examination someone could develop a special circular tool and apply it to the underside to depress the flexible portion to get the point to slip past that particular area.