Length: 210mm Measured from the center of the mounting hole in the plastic head to the end of the relaxed elastic cord. Constructed from UV-stabilized nylon 6 and a woven fabric-covered elastic cord with a diameter of 6mm. The elastic cord is fastened securely using a 316 stainless steel clip and sealed into the nylon body head through an ultrasonic process. Includes a nylon button to cover the 4mm diameter fastener. Color: Black