This ingenious, lightweight plastic set of four award-winning Figure 9 rope tighteners makes tent set-up a snap. The Figure 9's provide easy tension and secure adjustment without tying a single knot. Just pull your lines tight and keep them that way the first time - your tent stays taut and sound in any weather. The four 8' reflective guy lines provide high nighttime visibility (no more tripping over them in the dark!). All-in-all, the Figure 9 Tent Line Kit is the ultimate tent pitching upgrade. Fits rope sizes 1/16 inch to 3/16 inch.