This double height anti scaling barrier was erected to secure a car park in Croydon, Surrey. This particular type is called Raptor by Expamet. Although it looks very formidable, being made from plastic it would not inflict serious injury and is designed as a deterrent. The spikes rotate freely on a secure pole to make them difficult to climb. The image below demonstrates the wall mounting brackets, however they can be bolted to fences, walls or gates. There are other types such as Vandguard (made of aluminium) or Hercules, which we can also supply and erect.
Below is another set installed above a steel palisade fence in Croydon, London.