The cross skeleton in the center of the cable rotates according to its length, clamping four pairs of twisted pairs in the grooves of the skeleton to maintain their relative positions and improve the balance characteristics and crosstalk attenuation of the cable. In addition, ensure that the balance structure of the cable is not damaged during installation. The bare copper wire diameter of Category 6 unshielded twisted pair is 0.57mm (with a wire gauge of 23AWG), the insulated wire diameter is 1.02mm, and the STP cable diameter is 6.53mm.