SizeThe size of the foot ring is 60.5*5cm, the thickness is 10mm, the diameter of the spring cord is 5mm, the length is 55.5cm, and the longest can be stretched to 160cm. color: black MaterialOur traction rope is made of 5mm super strong polyurethane thread, which is strong and durable, not easy to break, and can be connected to long and heavy boards. ApplicationIt is a very useful surfing accessory, very suitable for use with surfboards, stand-up paddle boards and other tools. Unique DesignOur traction rope adopts a flexible rotating design to prevent the belt from tangling and entanglement on the leg. Easy To UseOur ankle ring is designed with velcro tape, with a soft sponge, soft and comfortable, suitable for any ankle size.