Assembly comprising a cable or duct and a cable clip , the cable clip , comprising: a base having a longitudinal dimension; and a pair of c-shaped holding members extending in a first direction from a first side of the base at opposite longitudinal ends of the base, wherein the holding members are spaced apart from one another in the longitudinal direction, wherein each of the holding members includes a pair of circumferentially-extending raised ribs on an inner surface thereof, wherein the raised ribs of each of the holding members are spaced apart from one another in the longitudinal direction and the raised ribs of one of the holding members are spaced apart from the raised ribs of other one of the holding members such that each of the raised ribs on each of the holding members is configured to contemporaneously engage a corresponding groove of the cable or duct to prevent relative sliding movement between the clip and the cable or duct in the longitudinal direction of the cable or duct, wherein each of the holding members includes a pair of arms that extend in the first direction from the first side of the base , and ends of each of the pair of arms are spaced apart from one another to define an opening configured to receive the cable or duct , and characterized in that each of the pairs of arms is flexible so that the arms move away from one another in a direction transverse to the longitudinal direction to enlarge the opening when the cable or duct is being inserted into the holding members while also preventing undesired and/or unintentional removal of the cable or duct from the holding members after installation of the clip. a base having a longitudinal dimension; and a pair of c-shaped holding members extending in a first direction from a first side of the base at opposite longitudinal ends of the base, wherein the holding members are spaced apart from one another in the longitudinal direction, wherein each of the holding members includes a pair of circumferentially-extending raised ribs on an inner surface thereof, wherein the raised ribs of each of the holding members are spaced apart from one another in the longitudinal direction and the raised ribs of one of the holding members are spaced apart from the raised ribs of other one of the holding members such that each of the raised ribs on each of the holding members is configured to contemporaneously engage a corresponding groove of the cable or duct to prevent relative sliding movement between the clip and the cable or duct in the longitudinal direction of the cable or duct, wherein each of the holding members includes a pair of arms that extend in the first direction from the first side of the base , and ends of each of the pair of arms are spaced apart from one another to define an opening configured to receive the cable or duct , and characterized in that each of the pairs of arms is flexible so that the arms move away from one another in a direction transverse to the longitudinal direction to enlarge the opening when the cable or duct is being inserted into the holding members while also preventing undesired and/or unintentional removal of the cable or duct from the holding members after installation of the clip. <EOS>