thin line like 1/8 parachute cord. I have a Kiss with the same arrangement. I just pull the line to turn the generator out of the wind. I have a small brass snap on the end that I hook to the back stay to keep it out of the way. It stops the Kiss from turning 360 degrees but in my set up that's OK. The Kiss has a dynamic brake arrangement where you flip a switch and short two of the three wires which pretty much stops the blades from turning. You might check with your manufacturer to see if it would work the same way with your unit. The blades spinning slowly shouldn't be any big deal other then a nuisance.