Again and again the same problem, if the aircraft is untied, the ground anchors stay and are hardly visible for cars driving over the field. The marking cone is the ingenious solution, it simply stands above the ground anchors.
Of course, this can also be used to secure the car or trailer, but is not a substitute for the legally required warning triangle!
Segelflugzeugaufkleber
Bei uns sollte jeder einen passenden [Aufkleber] für sein Auto finden!