Photo of attachment 'lock' on Tree or Gecko?

[nigelb001]

Thank you!  Much appreciated.  Looks a bit more involved than I thought with the spring.

I think probably the spring is superfluous - especially if you have it angled down in anyway the weight will be towards the hook mechanism so unless someone tried to rip it out with force?

I have Geckos and would not like to hang my Phantoms six foot in the air without the spring mechanism. there is even a screw on the underside to lock it in place. With this mechanism it is rock solid. So essential not superfluous in my reckoning