PREMIUM MATERIAL MATERIAL - Tent guy ropes are made of nylon rope and reflective gear rope; Comes with an aluminum tensioner that allows for easy and sturdy adjustments. HIGH VISIBILITY - Reflective tent guidelines ensure your safety and visibility, to prevent tripping over the tent, if you go out at night with low light. ALUMINUM TENSIONERS - Aluminum guyline adjusters are compact and ultralight, lightweight, easy to carry; As an outside helper, adjust the rope, help lock the cord and prevent it from slipping. EXTENSIVE APPLICATIONS - Ideal for camping, backpacking, backpacking, picnicking picnic, covered shelter and outdoor activities; Lightweight, durable, easy to carry. SIZE & PACKAGE - 8 pieces of tent rope with turnbuckles in one package; Each tent rope is 13 feet (4m) long, with a diameter of 0.16 inches (4cm).