Nuts & Bolts
So what else is there to say about this oddity, a strong wooden box clamped shut wit a very large bolt!!!
The finder will need to bring a suitable socket or large enough pliers to release this beast, the bolt is screwed into a solid mounted nyloc nut inside the box meaning it's too stiff to turn with your fingers but not impossible to release with a suitable tool!
When the finder replaces the bolt and screws it down it will tighten firmly but then stop so no body builder can try to proove their strength against the next finder :-)
Inside there is a weatherproof clip lock box that holding a log & pencil, a spare bolt is supplied just incase. (The pliers are not included)