Abstract: A cable support (100) for installing or retrofitting a telecommunications system cable (C). The cable support comprises an elongate hollow tube formed of two identical pieces (102A, 102B) which are fitted together by hand. The inner diameter of the tube is greater than the outer diameter of the cable so the cable fits through the tube. Each cable support piece has an outwardly flaring end section which has a radius of curvature corresponding to a defined radius of curvature for bending the cable from a vertical-to-horizontal direction, or vice versa. Each piece also includes a helical cable channel (104A, 104B) extending from an outer to an inner end of the piece. When assembled, the inner ends of the cable channel are coterminous so a cable channel extending throughout the length of the completed support is formed. This allows a length of cable to be readily inserted into the support. The inner ends of the pieces fit together by a friction fit to complete the support.