Pop-up Sprinkler Mounting Spike

I was testing locations for pop up sprinklers in my garden, and decided I needed something to hold them in place.

Useful also for temporary (above-ground) deployment of pop-up sprinklers

Measurements are based on Claber Colibri pop-up sprinklers

https://www.claber.com/en/cod/90200/Colibri-system/Starter-kit-Colibri/

Sprinkler Diameter ø29.5mm