Very heavy chain, seems to be very solid, only criticism I have is the lock, it looks out of place, you have this really heavy chain with a metal 'u' bolt type that loops in the chain, then has a flimsy lock. On a couple of occasions the key failed to open the lock as it got stuck. I only been using it for a few days where I decided to spray oil the lock internals which has improved the closing and opening if the lock. I will be looking for a replacement lock but will use the existing chain.