Line for lowering screens

I wish a had a line in a small case to lower a few big high full screens to the ground. I will be wiping these down and if I could get it done on the ground would be easier, prob plungers secure the screen.

I can use string but a quick to retract line would be great.

Learn to bend the frame just enough to wiggle the plunger back, then use a retractable dog lead.