We have a piece in a park that used to be covered in mosaic. Between the somewhat not great quality of materials used and the skateboarders, the piece was pretty much destroyed. The neighborhood really wanted to keep the structure so, we decided to remove all of the remnants of mosaic and resurface the concrete and stain it. We would still like to protect the concrete from skateboarders and were considering putting the metal brackets along the edge. However, they are a bit costly and someone from our parks department told us they were not effective. Does anyone have experience with the anti-skate brackets or have any other suggestions on how to protect the piece? It's meant to be seating and also is a climbable structure. See attached image.

Thank you,
Megan