I assume that the S hooks and zip ties allow the speaker to be placed semi-randomly in the right general area of the fence with minimal effort in attachment. It looks like there are usually four S hooks used, but one is missing or got dropped. The zip ties are just there to provide an arc of attachment to a convenient place on the chain link fence. (Hey-I'm trying to give them the benefit of doubt...not that they deserve it.) Mark C.wonder why didn't they just hook it directly to the s-hooks using the holes in the bracket?
Water makes the nylon more flexible but weaker.A rep for Hellerman-Tynan said that ties loose water and weaken once exposed to the air - and that HT puts a little water in the bag when packing the ties so as to improve their shelf life.