I was a little surprised how thin then but actually are the links in the shell, less than 5 mm. That you get jerk twitch with NEM bolt cutters or NEM gag on. Creates disincentives for casual thieves due to the large number of castle. Do all things in all that it claims to be able to order. Who is really looking for security, the need to look at the 100 upwards, you get no longer so quickly.