The gymnasiums where we play don't have permanent volleyball lines. Our
solution has been to use outdoor rope lines or simple markers on the
corners. Each has problems.
With the corner markers, close calls are very difficult to make a good
decision with. Many points have to be played over. The rope lines give
us a good accurate mark, but they're very dangerous if you step on them
expecting good traction.
Are there any indoor lines out there that won't slide when you step on
them? What I envision is a 2" wide ***ish ribbon, but I don't
remember ever seeing anything like this.