Tfwadmx L Shape Aluminum Guyline Adjuster Camping Tent Rope Buckle Retainer Black 10 PCS Material: Aluminum Alloy, lightweight, convenient to carry. It features slip resistance and strong construction, does not fade. A good accessory for camping. Fits for the cords from 3mm to 4mm. Fasten your tent or awning, help to tighten the cord and prevent it sliding away. Ideal for camping, hiking, backpacking, picnic, tree house and other outdoor activities.